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In a simple circuit, why does the bulb g...

In a simple circuit, why does the bulb glow when you close the switch ?

A

The switch produces electricity

B

Closing the switch completes the circuit

C

Closing the switch breaks the circuit

D

The bulb is getting charged

Text Solution

Verified by Experts

The correct Answer is:
B
Closing the switch completes the circuit
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SURA PUBLICATION-ELECTRICITY-TEXTBOOK EVALUATION (
  1. SI unit of resistance is

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  2. In a simple circuit, why does the bulb glow when you close the switch ...

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  3. Kilowatt hour is the unit of

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  4. The ratio of the potential difference to the current is known as .

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  5. The wiring in a house consists of circuit.

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  6. The power of an electric device is a product of and .

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  7. LED stands for.

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  8. MCB is used to protect house hold electrical appliances.

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  9. Define th SI unit of electric current. (or) What is one second in SI s...

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  10. One unit of electrical energy consumed is equal to 1000 kilowatt hour.

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  11. The effective resistance of three resistors connected in series is les...

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  12. Assertion: In a simple battery circuit the point of highest potential ...

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  13. Assertion: LED bulbs are far better than incandescent bulbs. Reason:...

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  14. What happens to the resistance, as the conductor is made thicker ?

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  15. Why is tungsten metal used in bulbs, but not in fuse wires ?

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  16. Name any two devices, which are working on the heating effect of the e...

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  17. What is the role of the earth wire in domestic circuits ?

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  18. State Ohm's law .

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  19. Distinguish between the resistivity and conductivity of a conductor .

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  20. What connection is used in domestic appliances and why ?

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