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In the shows arrangement of a meter brid...

In the shows arrangement of a meter bridge, if `AC` corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire `AB` is doubled?

A

x/4`

B

2x

C

4x

D

x

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-Mock Test 28-EXAMPLE
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  2. In above question if resistance of meter bridge wire is 1 Omega /cm th...

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  3. In the shows arrangement of a meter bridge, if AC corresponding to nul...

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  4. If in an experminal of wheastone bridge, the position of cells and gal...

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  5. The figure shows a meter bridge wire AC having unifrom area o cross-se...

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  6. In a potentiometer experiment, the balancing with a cell is at length ...

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  7. The current in the primary circuit of a potentiometer is 0.2 A. The sp...

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  8. The length of a wire of a potentiometer is 100 cm, and the emf of its ...

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  9. In the figure the potentiometer wire AB of length L and resistance 9 r...

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  10. Potentiometer is superior to voltmeter because

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  11. The figure shows a potentiometer arrangement. D is the driving cell, C...

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  12. A charge + Q is moving upwards vertically. It enters a magnetic field ...

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  13. If an electron enters a magnetic field with its velocity pointing in t...

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  14. When a charged particle enters ina uniform magnetic field then its kin...

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  15. If a charged particle is moving in a plane perpendicular to a uniform ...

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  16. In a magnetic field vecB=hati+yhatj+3hatk a charge particle (q, m) is ...

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  17. If a chraged particle at rest experiences no electromagnetic force, ...

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  19. A charged particle has acceleration veca=2hati+xhatj in a magnetic fie...

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