CBSEClass 12PhysicsCurrent Electricity
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1. A galvanometer acting as a volt meter will have with its coil.

2. When three identical bulbs of 60 W, 200 V rating are connected in series to a 200 V supply, the power drawn by them will be:

3. n resistances, each of R Ω, are connected in parallel gives an equivalent resistance of R Ω. If these resistances were , connected in series, the combination would have a resistance in Ω is equal to

4. Why is the Wheatstone bridge more accurate than other methods of measuring resistances:

5. A potential difference of 10 V is applied across a conductance of 2 S. The current in the conductor will be :

6. Ohm's law is valid when the temperature of conductor is :

7. The emf of a car battery is about:

8. Emf is measured in :

9. 1 kilowatt hour is commonly known as :

10. How many joules are equal to I kWh?

Practice more on Current Electricity
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