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Electromagnetic Induction MCQ Level - 1 - IIT JAM MCQ


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10 Questions MCQ Test - Electromagnetic Induction MCQ Level - 1

Electromagnetic Induction MCQ Level - 1 for IIT JAM 2024 is part of IIT JAM preparation. The Electromagnetic Induction MCQ Level - 1 questions and answers have been prepared according to the IIT JAM exam syllabus.The Electromagnetic Induction MCQ Level - 1 MCQs are made for IIT JAM 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Electromagnetic Induction MCQ Level - 1 below.
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Electromagnetic Induction MCQ Level - 1 - Question 1

A bar magnetic is dropped between a current carrying coil. What would be its acceleration?

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 1

When a magnet is dropped between current carrying coil then magnetic flux in coil changes due to which induce current produces in the coil, the direction of induce current will be such that it oppose the motion of magnet, so acceleration of magnet will be less than g

The correct answer is: less than g downwards

Electromagnetic Induction MCQ Level - 1 - Question 2

Lenz’s law gives

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 2

According to Lenz’s law” the direction induced current is always in such a direction that it opposes the cause due to which it is produced

The correct answer is: the direction of the induced current

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Electromagnetic Induction MCQ Level - 1 - Question 3

The self inductance of a solenoid of length L, area of cross section A and having N turns is :

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 3

The correct answer is: 

Electromagnetic Induction MCQ Level - 1 - Question 4

A copper ring is tied to a string and suspended vertically. On bringing a magnetic towards the coil, as shown in the figure

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 4

The correct answer is: the ring will move away from magnet

Electromagnetic Induction MCQ Level - 1 - Question 5

A metallic rod completes its circuit as shown in the figure. The circuit is normal to a magnetic field  B = 0.15 tesla. If the resistances of the rod is 3Ω the force required to move the rod with a constant velocity of 2m/sec is :

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 5

The correct answer is: 3.75 × 10–3 N

Electromagnetic Induction MCQ Level - 1 - Question 6

The plate circular coils P and Q have radii r1 and  r2. (r1 << r2) and are coaxial as shown in figure. the number of turns in P and Q are respectively N1 and  N2. If current in coil Q is varied steadily at a rate x A/s then the induced emf in the coil P will be approximately :

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 6

The correct answer is:  

Electromagnetic Induction MCQ Level - 1 - Question 7

A metal rod of length L is placed normal to a magnetic field and rotated through one end of rod in a circular path with frequency f. The potential difference between it ends will be :

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 7

The correct answer is: πL2Bf

Electromagnetic Induction MCQ Level - 1 - Question 8

A circular conducting loop is placed in uniform magnetic field B = 0.025 Tesla  perpendicular to plane of loop. The loop is allowed to shrink in radius at rate mm/second. When radius is cm. What is the value of instantaneous induced EMF.

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 8

The correct answer is: πμV

Electromagnetic Induction MCQ Level - 1 - Question 9

The graph between the current and the time for an inductance coil is shown below which of the following graph show the voltage time variation

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 9

The correct answer is: 

Electromagnetic Induction MCQ Level - 1 - Question 10

In a step down transformer input voltage is 200 volt and output voltage 5 volt. The ratio of number of turns in it will be

Detailed Solution for Electromagnetic Induction MCQ Level - 1 - Question 10


The correct answer is: 40 : 1

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