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A depolarizer essentially acts an agent ...

A depolarizer essentially acts an agent which can prevent
a) the covering of copper plates by a layer of hydrogen
b) the back emf 

A

Only a is true

B

Only b is true

C

Both a and b are true

D

Neither a nor b

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
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  2. Sensitivity of potentiometer

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

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

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

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

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

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

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

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  10. Statement-1:- The temperature dependence of resistance is usually give...

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  11. A depolarizer essentially acts an agent which can prevent a) the cov...

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  12. The meter bridge can be used a) to determine an unknown resistance ...

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  13. Potentiometer can be used a) for measurement of emf of cell b) to ...

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  14. Sensitivity of potentiometer can be increased by a) increasing serie...

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  15. Choose the correct statements from the following a) in potentiometer...

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  16. Match list - I with List - II

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  17. Match list - I with List - II

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  18. Match list - I with List - II

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  19. Match list - I with List - II

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  20. Match list - I with List - II

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