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A square wire loop of side 10 cm is plac...

A square wire loop of side 10 cm is placed at an angle of `45^(@)` with a magnetic field that changes uniformly from 0.1 T to zero in 0.7 s. If resistance of the loop is `1 Omega`, then the induced current in it is

A

1 mA

B

2.5 mA

C

3.5 mA

D

4 mA

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The correct Answer is:
A
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CHHAYA PUBLICATION-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-EXERCISE
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  2. The magnetic flux across a coil, of 50 turns and of diameter 0.1 m, ch...

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  3. A coil with a small area of 10^(-5)m^(2) is lying on the xy -plane aro...

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  4. The magnetic flux linked with a coil varies with time t as phi=at^(2)+...

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  5. Induced current in a coil due to electromagnetic induction does not de...

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  8. In the figure a circular loop of radius r and resistance R is shown. A...

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  9. Two identical circular loops of metal wire are lying on a table withou...

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  10. A circular disc of radius 0.2 m is placed in a uniform magnetic field ...

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  11. A square wire loop of side 10 cm is placed at an angle of 45^(@) with ...

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  12. A rod of length b moves with a constant velocity v in the magnetic fie...

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  13. A boat is moving due east in a region where the earth's magnetic field...

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  14. SI unit henry (H) of inductance can be written as

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  15. The self-inductance of a long straight solenoid is L. Each of the leng...

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  16. The self inductances of two coils are 16 mH and 25 mH, and they have a...

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  17. If current I passes through a pure inductor of self-inductance L, the ...

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  18. Two solenoids of equal number of turns have their lengths and the radi...

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  19. The current I in a coil varies with time as shown in the fig. The vari...

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