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
- A and B are open, but C is closed
- A and B are closed, but C is open
- A is open, but B and C are closed
- Both B and C are open, but A is closed
Hint:
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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