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Which of the following figure correctly ...

Which of the following figure correctly depicts the Lenz’s law. The arrows show the movement of the labelled pole of a bar magnet into a closed circular loop and the arrows on the circle show the direction of the induced current

A

B

C

D

Text Solution

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The correct Answer is:
A
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NARAYNA-ELECTROMAGNETIC INDUCTION-EXERCISE-3
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  2. A transformer is used to light a 100 W and 110 V lamp from a 220V main...

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  3. What is the value of inductance L for which the current is a maximum i...

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  4. The primary and secondary coils of a transmformer have 50 and 1500 tur...

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  5. A long solenoid has 500 turns. When a current of 2A is passed through ...

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  6. A circular disc of radius 0.2 m is placed in a uniform magnetic fied...

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  7. A long solenoid has 500 turns. When a current of 2 A is passed through...

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  8. A conducting circular loop is placed in a uniform magnetic field 0.04T...

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  9. A rectangular, a square , a circular and an elliptical loop, all in th...

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  10. Which of the following figure correctly depicts the Lenz’s law. The ar...

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  11. A conducting circular loop is placed in a uniform magnetic field, B=0....

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  12. A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz f...

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  13. The current i in a coil varies with time as shown in the figure. The v...

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  14. The current (I) in the inductance is varying with time according to th...

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  15. A coil of resistance 400Omega is placed in a magnetic field. If the ma...

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  16. A wire loop is rotated in magneitc field. The frequency of change of d...

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  17. A thin semicircular conducting ring (PQR) of radius r is falling with ...

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  18. An electron moves on a straight line path XY as shown. The abcd is a a...

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  19. A conducting square frame of side 'a' and a long straight wire carryin...

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  20. A long solenoid has 1000 turns. When a current of 4A flows through it,...

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