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The voltage across the two equal resista...

The voltage across the two equal resistances connected in series get balanced at 400cm. length of the potentiometer wire. If they are connected in parallel and same amount of current is passed the balancing length will be

A

100 cm

B

200 cm

C

600 cm

D

800 cm

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-Electrical Instrument -EXERCISE -1
  1. Potentiometer is an ideal instrument because

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  2. A potentiometer works on the principle that

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

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

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  5. In potentiometer the potential gradient is –

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

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

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  8. The material of wire of potentiometer is

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

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

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

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

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

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

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

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

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  17. A potentiometer has uniform potential gradient across it. Two cells c...

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  18. A wire connected in the left gap of a meter bridge balance a 10Omega r...

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  19. With two resistance R1 and R2 (>R1) in the two gaps of a metre bridge ...

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  20. In a simple meter bridge circuit, the gaps are bridged by cord P and Q...

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