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In the circuit of figure , the bulb wil...

In the circuit of figure , the bulb will be become suddenly bright , if

A

Switch is closed or opened

B

Switch is closed

C

Switch is opened

D

None of these

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-ELECTROMAGNETIC INDUCTION-ASSIGNMENT(SECTION - B) (OBJECTIVE TYPE QUESTIONS)
  1. A conducting rod AB of length l is projected on a frictionless frame P...

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  2. In the circuit of figure , the bulb will be become suddenly bright , ...

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  3. What will be the direction of current in the coil A as the switch S is...

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  4. The armature of a generator of resistance 1Omega is rotated at its rat...

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  5. A copper disc of the radius 0.1 m is rotated about its centre with 20 ...

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  6. A frame CDEF is placed in a region where a magnetic field barB is pres...

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  7. An ideal solenoid of cross-sectional area 10^(-4)m^(2) has 500 turns p...

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  8. An electron moves along the line AB with constant velocity V which lie...

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  9. Figure shows an L-R circuit. When the switch S is closed, the current ...

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  10. Two coils A and B are wound on the same iron core as shown in figure. ...

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  11. A simple pendulum with bob of mass m and conducting wire of length L s...

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  12. The switch shown in the circuit is closed al t = 0, The current drawn ...

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  13. A small square loop of wire of side l is placed inside a large square ...

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  14. A uniform magnetic field exista in reign given by . A rod of length 5m...

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  15. A copper rod AB-of length / pivoted at one end A, rotates at constant ...

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  16. Radius ol a circular luop placed in a perpendicular uniform magnetic f...

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  17. The figure shows three circuits with identica batteries, inductors and...

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  18. In an inductor, the current / varies with time to l = 5A + 16.(A//s)t....

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  19. A magnet is moved in the direction indicaled by an arrow between two c...

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  20. Two coils of self-inductance L(1) and L(2) are palced closer to each o...

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