Question

When the switch S is turned on, the bulb suddenly glows and it turns off

1. Suggest a method for the continuous glowing of bulb.

2. Name the phenomenon behind this.

3. Define it.

4. What are the name of the coils P and Q?​

Answer 1

1. Either continuously close and open the circuit, or use ac power supply, or use a transistor

2. electro magnetic induction

4. P is primarily coil and Q is secondary coil

Explanation:

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