Physics
Grade-7
Easy

Question

DIRECTIONS: Based on the following diagram/picture, answer the questions given below: In the circuit diagram shown below, the bulb lights up when

  1. A and B are open, but C is closed
  2. A and B are closed, but C is open
  3. A is open, but B and C are closed
  4. Both B and C are open, but A is closed

hintHint:

Make circuit complete.

The correct answer is: A and B are closed, but C is open


    For switching on the bulb switch A must be closed while one out of B or c should be closed or both can be closed. So, correct option is 2- A and B are closed, but C is open.

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