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NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - NEET MCQ


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5 Questions MCQ Test Physics Class 12 - NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop

NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop for NEET 2024 is part of Physics Class 12 preparation. The NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop questions and answers have been prepared according to the NEET exam syllabus.The NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop below.
Solutions of NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop questions in English are available as part of our Physics Class 12 for NEET & NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop solutions in Hindi for Physics Class 12 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop | 5 questions in 5 minutes | Mock test for NEET preparation | Free important questions MCQ to study Physics Class 12 for NEET Exam | Download free PDF with solutions
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NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 1

A circular loop of radius 3 cm is having a current of 12.5 A. The magnitude of magnetic field at a distance of 4 cm on its axis is

Detailed Solution for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 1


Here, I = 12.5 A, R = 3 cm = 3 x 10-2
x = 4 cm = 4 x 10-2 m
∴ 

NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 2

A straight wire carrying a current of 13 A is bent into a semi-circular arc of radius 2 cm as shown in figure. The magnetic field is 1.5 x 10-4 T at the centre of arc, then the magnetic field due to straight segment is

Detailed Solution for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 2

Since dl and r for each element of the straight segments are parallel. Therefore

Hence, B is also zero.

NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 3

A circular coil of wire consisting of 100 turns each of radius 9 cm carries a current of 0.4 A. The magnitude of magnetic field at the centre of the coil is

Detailed Solution for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 3

Here N = 100
R = 9 cm = 9 x 10-2 m and I = 0.4 A 
Now, 
 0.279 x 10-3 T = 2.7 9 x 10-4 T 

NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 4

The magnitude of the magnetic field at the centre of the tightly wound 150 turn coil of radius 12 cm carrying a current of 2 A is

Detailed Solution for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 4

Here, N = 150, R = 12 cm = 12 x 10-2 m, I = 2 A 

= 1.57 x 10-3T = 15.7 x 10-4 T = 15.7 G

NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 5

A tightly wound 90 turn coil of radius 15 cm has a magnetic field of 4 x 10-4 T at its centre. The current flowing through it is

Detailed Solution for NCERT Based Test: Magnetic Field on the Axis of a Circular Current Loop - Question 5

Here, N = 90
R = 15 cm = 15 x 10-2m, B = 4 x 10-4 T
∵ B = μ0NI/2R 

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