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प्रश्न
Give a scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
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उत्तर
- The electric bulb operates under the principle of the heating effect of electric current.
- The bulb's solenoid-type coil has a very high melting point and high resistance.
- The solenoid-type coil of the lightbulb becomes heated to a high temperature (up to 3400°C) and begins to shine when current is delivered through it.
As a result, tungsten metal creates a solenoid-type coil in an electric bulb.
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संबंधित प्रश्न
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(c) four time
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| P | `6.84xx10^8`Ωm |
| Q | `1.70xx10^8`Ωm |
| R | ` 1.0xx10^15`Ωm |
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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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She wrote: Three-pin connections reduce heating of connecting wires.
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