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The potentiometer wire is replaced by an...

The potentiometer wire is replaced by another wire whose length thickness and specific resistance are double the previous one. The current strength flowing through it is also doubled. How many times will the potential gradient becomes

A

1

B

2

C

3

D

8

Text Solution

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The correct Answer is:
A
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MOTION-Electrical Instrument -EXERCISE -1
  1. If the length of the potentiometer wire is doubled, the sensitivity fo...

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  2. The potential gradient of the potentiometer wire depends on

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  3. The potentiometer wire is replaced by another wire whose length thickn...

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

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

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

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  7. Potentiometer is an ideal instrument because

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  8. A potentiometer works on the principle that

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

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

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  11. In potentiometer the potential gradient is –

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

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

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  14. The material of wire of potentiometer is

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

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

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

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

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

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

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