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The sensitivity of potentiometer wire ca...

The sensitivity of potentiometer wire can be increased by 

A

decreasing the length of potentiometer wire

B

increasing potential gradient on its wire

C

increasing emf of battery in the primary circuit

D

decreasing the potential gradient on its wire

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. Metal wire is connected in the left gap, Germanium connected in the ri...

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  2. A series high resistance is preferable than shunt resistance in the ga...

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  3. The sensitivity of potentiometer wire can be increased by

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  4. A cell of emf 'E' and internal resistance r connected in the secondary...

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  5. Potentiometer is an ideal instrument, because

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  6. On increasing the resistance of the primary circuit of potentiometer, ...

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  7. If the value of potential gradient on potentiometer wire is decreased,...

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  8. A cell of negligible internal resistance is connected to a potentiomet...

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  9. For the working of potentiometer, the emf of cell in the primary circu...

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  10. The balancing lengths of potentiometer wire are l(1) and l(2) when two...

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  11. At the moment when the potentiometer is balanced

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  12. Temperature coefficient of resistance and resistivity of a potentiomet...

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  13. Sensitivity of potentiometer

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  14. The quantity that cannot be measured by a potentiometer is ..........

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  15. The potential gradients on the potentiometer wire are V(1) and V(2) wi...

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  16. If the current in the primary circuit is decreased, then balancing len...

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  17. Statement - (A) : Thermistor can have only negative temperature coeffi...

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  18. Statement - (A): Resistivity of insulators is about 10^22 times the re...

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  19. Statement - (A) : Series combination of cells is preferred when extern...

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  20. Statement - (A): The difference between a new torch light cell and an ...

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