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The length of a potentiometer wire is 10...

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

A

`0.18`

B

`0.22`

C

`1.3`

D

`0.9`

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-Electrical Instrument -EXERCISE -1
  1. The potentiometer wire is replaced by another wire whose length thickn...

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  2. If the current in a potentiometer increases, the position of the null ...

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  3. The length of a potentiometer wire is 10m and a potential difference o...

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  4. As is the cross sectional area and rho is the specific resistance of a...

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  5. Potentiometer is an ideal instrument because

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  6. A potentiometer works on the principle that

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  7. If the length of potentiometer wire is increased, then the accuracy in...

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  8. In an ammeter calibration experiment, the potentiometer is used to mea...

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  9. In potentiometer the potential gradient is –

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  10. If the potentiometer wire having resistance rho ohm/ m and I amp. curr...

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  11. Discuss the principle of potentiometer and explain the determination o...

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  12. The material of wire of potentiometer is

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  13. If the current in the primary circuit of a potentiometer wire of speci...

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  14. The p.d. between A and B is balanced at 2.036 m length of the potentio...

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  15. In the following figure, the p.d. between the points M and N is balanc...

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  16. In the foregoing question, the balancing length between the p.d. betwe...

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  17. In a potentiometer of one meter length , an unknown emf voltage source...

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  18. The voltage across the two equal resistances connected in series get b...

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  19. The quantity that cannot be measured by a potentiometer is….

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  20. Correct diagram for the determination of internal resistance of a prim...

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