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P and Q are two circular thin coils of s...

P and Q are two circular thin coils of same radius and subjected to the same rate of change of flux. If coil P is made up of copper and Q is made up of iron, Then the wrong statement is-

A

emf induced in the coils is the same

B

the induced current in P is more than that in Q

C

the induced current in P and Q are in the same direction

D

the induced current are the same in both the coils

Text Solution

Verified by Experts

The correct Answer is:
D

Induced emf will be same but resistance of both loop will be different.
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RESONANCE-ELECTROMAGNETIC INDUCTION-Exercise
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  2. A metallic square loop ABCD is moving in its own plane with velocity v...

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  3. P and Q are two circular thin coils of same radius and subjected to th...

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  4. Three identical circular coils A, B and C are placed coaxial (with pla...

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  5. Two plane circular coils P and Q have radii r(1) and r(2), respectivel...

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  6. A conducting rod PQ of length l = 2m is moving at a speed of 2m s^(-1)...

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  7. The horizontal component of earth's magnetic field is 3xx10^(-5) Wb//m...

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  8. The north pole of a magnet is brought near a coil. The induced current...

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  9. The unit of mutual inductance is-

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  10. In a step-down transformer input voltage is 200 volts and output volta...

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  11. Lenz's law is consequence of the law of conservation of

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  13. A metal rod of length L is placed normal to a magnetic field and rotat...

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  14. The spokes of a wheel are made of metal and their lengths are of one m...

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  16. The self-inductance of a coil is 2H. The current in the coil changes f...

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  17. Area of a coil is 0.16m^2. If the magnetic field through it changes fr...

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  18. What is increase in step-down transformer?

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