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Shown in the figure below is a meter- br...

Shown in the figure below is a meter- bridge set up will null deflection in the galvanometer.

The value of the unknown resistor R is

A

`13.75Omega`

B

`220Omega`

C

`110Omega`

D

`55Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
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MOTION-CURRENT ELECTRICITY-EXERCISE -4 (Level -I)
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  2. A material 'B' has twice the specific resistance of 'A'. A circular wi...

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  3. Shown in the figure below is a meter- bridge set up will null deflecti...

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  4. A 5 V battery with internal resistance 2Omega and a 2V battery with i...

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  5. Statement I : The temperature dependence of resistance is usally given...

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  6. Two conductors have the same resistance at 0^@C but their temperature ...

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  7. In the circuit shown below, the key K is closed at t =0. The current t...

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  8. If 400 Omega of resistance is made by adding four 100 Omega resistance...

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  9. The current in the primary circuit of a potentiometer is 0.2 A. The sp...

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  10. If a copper wire is stretched to make it 0.1% longer wha is the percen...

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  11. Two electic bulbs marked 25 W -220 V and 100 W - 220 V are connected i...

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  12. Resistance of a given wire is obtained by mea suring the current flowi...

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  13. The supply voltage to room is 120 V. The resistance of the lead wires ...

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  14. Assertion : Higher the range, greater is the resistance of ammeter. ...

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  15. In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 f...

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  16. When 5 V potential difference is applied across a wire of length 0.1 m...

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  17. In the circuit shown , the current in the 1Omega resistor is :

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  18. A galvanometer having a coil resistance of 100 omega gives a full scal...

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  19. The temperature dependence of resistance of Cu and undoped Si in the t...

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  20. In the above circuit the current in each resistance is -

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