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The specific resistance per unit area of...

The specific resistance per unit area of cross section of a wire is equivalent to –

A

charge/current

B

resistance/length

C

potential gradient

D

current/area

Text Solution

Verified by Experts

The correct Answer is:
B
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MOTION-Electrical Instrument -EXERCISE -1
  1. A galvanometer can be converted into a voltmeter by connecting a

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  2. In every experiment with potentiometer in the null point state, the po...

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  3. The specific resistance per unit area of cross section of a wire is eq...

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  4. If the length of the potentiometer wire is doubled, the sensitivity fo...

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  5. The potential gradient of the potentiometer wire depends on

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

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

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

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

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  10. Potentiometer is an ideal instrument because

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  11. A potentiometer works on the principle that

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

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

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  14. In potentiometer the potential gradient is –

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

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

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  17. The material of wire of potentiometer is

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

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

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

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