Two infinitely long straight wires lie in the xy-plane along the lines x = andplusmn;R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,andradic;3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1andgt; 0 and I2 andlt; 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 andlt; 0 and I2 andgt; 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer?

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

JEE Exam > JEE Questions > Two infinitely long straight wires lie in the...

Join the Discussion on the App

Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I₁ and the wire located at x = -R carries a constant current I₂. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the

direction. Which of the following statements regarding the magnetic field

is (are) true?

a)
If I₁ =I₂, then cannot be equal to zero at the origin (0, 0,0)
b)
If I₁ > 0 and I₂ < 0, then B can be equal to zero at the origin (0, 0, 0)
c)
If I₁ < 0 and I₂ > 0, then B can be equal to zero at the origin (0, 0, 0)
d)
If I₁ = I₂, then the z-component of the magnetic field at the centre of the loop is

Correct answer is option 'A,B,D'. Can you explain this answer?

FREE This question is part of

JEE Advanced 2018 Question Paper with Solutions (20th May - Morning)

Attempt Test

Attempt this Test

Verified Answer

Two infinitely long straight wires lie in the xy-plane along the lines...

The given condition is represented by the figure as shown below:

(A) Due to two straight wires, the magnetic field at origin is zero because both the wires are located at same distance from the origin; thus, they cancel out magnetic field of each other. Therefore, only the magnetic field due to the circular loop act on the origin and its direction is in −k . So, the total magnetic field

could not be zero at origin.
(B) When I₁ > 0 and I₂ < 0 , the magnetic field due to the circular loop acting on the origin and its direction is in −k and the net magnetic field at origin due to both the straight wires is in + k direction. Thus it may be possible that they cancel out and make zero magnetic field at origin.
(C) When I₁ < 0 and I₂ > 0 , the magnetic field due to the circular loop acting on the origin and its direction is in −k and the net magnetic field at origin due to both the straight wires is in −k direction. So, the total magnetic field cannot be zero at origin.
(D) If I₁ =I₂ then B₁ =B₂ , then they cancel out each other at the center of the loop. So, only magnetic field exists due to the circular loop.

View all questions of this test

View all answers Start learning for free

< Previous Question Next Question >

Explore Courses for JEE exam

Similar JEE Doubts

Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +Rcarries a constant current I1 and the wire located at x = –R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0, √3R ) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the + ˆj direction. Which of the following statements regarding the magnetic fieldis (ar e) true?

View answer

Directions: The following question contains statement-1 and statement-2. Of the four choices given, choose the one that best describes the two statements.Statement-1: For a mass M kept at the centre of a cube of side a, the flux of gravitational field passing through its sides is 4πGM.Statement-2: If the direction of a field due to a point source is radial and its dependence on the distance r from the source is given as 1/r2, its flux through a closed surface depends only on the strength of the source enclosed by the surface and not on the size or shape of the surface.

View answer

A conducting bar of length L is free to slide on two parallel conducting rails as shown in the figure.Two resistors R1 and R2 are connected across the ends of the rails. There is a uniform magnetic field pointing into the page. An external agent pulls the bar to the left at a constant speed v.The correct statement about the directions of induced currents I1 and I2 flowing through R1 and R2 respectively is

View answer

A non-conducting non-magnetic rod having a circular cross section of radius R is suspended from a rigid support as shown in figure. A light and small coil of 300 turns is wrapped tightly at the left end of the rod where uniform magnetic field B exists in vertically downward direction. Air of densityρρhits the half of the right part of the rod with velocity v as shown in the figure. What should be the current in the clockwise direction (as seen from O) in the coil so that the rod remains horizontal? Given answer in mA. Given, Correct answer is '2'. Can you explain this answer?

View answer

As shown in the figure, P and Q are two coaxial conducting loops separated by some distance. When the switch S is closed, a clockwise current IP flows in P (as seen by E) and an induced current IQ1 flows in Q. The switch remains closed for a long time. When S is opened, a current IQ2 flows in Q.Then the direction IQ1 and IQ2 (as seen by E) are

View answer

Top Courses for JEEView all

Physics for JEE Main & Advanced

Mock Tests for JEE Main and Advanced 2025

Chemistry for JEE Main & Advanced

Mathematics (Maths) for JEE Main & Advanced

Chapter-wise Tests for JEE Main & Advanced

Top Courses for JEE

View all

Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer?.

Solutions for Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.

Here you can find the meaning of Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer?, a detailed solution for Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? has been provided alongside types of Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at x = +R carries a constant current I1 and the wire located at x = -R carries a constant current I2. A circular loop of radius R is suspended with its centre at (0, 0,√3R) and in a plane parallel to the xy-plane. This loop carries a constant current I in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the direction. Which of the following statements regarding the magnetic field is (are) true?a)If I1 =I2, then cannot be equal to zero at the origin (0, 0,0)b)If I1> 0 and I2 < 0, then B can be equal to zero at the origin (0, 0, 0)c)If I1 < 0 and I2 > 0, then B can be equal to zero at the origin (0, 0, 0)d)If I1 = I2, then the z-component of the magnetic field at thecentre of the loop isCorrect answer is option 'A,B,D'. Can you explain this answer? tests, examples and also practice JEE tests.

Explore Courses for JEE exam