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Question
Explain the application of heating effect of electric current in an electric bulb with a diagram.
Solution
- Electric bulb works on the principle of heating effect electric of current.
- The solenoid type coil of bulb has high resistivity and very high melting point.
- When current is passed through the bulb, solenoid type coil of bulb gets heated to high temperature (upto 3400 °C) and starts glowing.
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| A | Nail | 3.0 | 3.15 |
| B | Thin plate | 6.0 | 6.33 |
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| A | B | C | D |
 |
 |
 |
 |
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