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Wheatstone bridge can be used...

Wheatstone bridge can be used 

A

to compare two unknown resistances.

B

to measure small strains produced in hard metals

C

as the working principle of meter bridge

D

all the above

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. In a balanced Wheatstone's network, the resistances in the arms Q and ...

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  2. If galvanometer and battery are interchanged in balanced Wheatstone br...

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  3. Wheatstone bridge can be used

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  4. In a Wheatstone's bridge three resistances P,Q,R connected in three ar...

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  5. Wheatstone bridge is most sensitive when the arms ratio is

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  6. In metre bridge experiment, the known and unknown resistances in the t...

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  7. In a metre bridge, metal wire is connected in the left gap, standard r...

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  8. Metal wire is connected in the left gap, semi conductor is connected i...

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  9. Metal wire is connected in the left gap, Germanium connected in the ri...

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

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  11. The sensitivity of potentiometer wire can be increased by

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

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  13. Potentiometer is an ideal instrument, because

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

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

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

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

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

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  19. At the moment when the potentiometer is balanced

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

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