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In the circuit, the galvanometer G shows...

In the circuit, the galvanometer G shows zero deflection. If the batteries A and b have negligible internal resistance, the value of the resistor R will be -

A

`200Omega`

B

`100Omega`

C

`500Omega`

D

`1000Omega`

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. Two sources of equal emf are connected to an external resistance R. Th...

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  3. A heater coil is cut into two equal parts and only one part is now use...

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  4. An energy source will supply a constant current into the load if its i...

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  5. In a potentiometer experiment the balancing with a cell is at length 2...

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  6. The resistance of hot tungsten filament is about 10 times the cold res...

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  7. An electric bulb is rated 220 volt - 100 watt. The power consumed by i...

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  8. The resistance of a bulb filmanet is 100Omega at a temperature of 100^...

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  9. In a Wheatstone's bridge, three resistances P,Q and R connected in the...

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  10. The Kirchhoff's first law (Sigmai = 0) and second law (SigmaiR = Sigma...

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  11. The current I drawn from the 5V source will be

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  12. The resistance of a wire is 5 Omega at 50^@C and 6 Omega at 100^@C . T...

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  13. A material 'B' has twice the specific resistance of 'A'. A circular wi...

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

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

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

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

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

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

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

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