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प्रश्न
Which electric heating device in your home do you think have resistors which control the flow of electricity?
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उत्तर
The following electric heating devices have resistors to control the flow of electricity:
Electric iron
Electric geyser
Electric oven
Electric heater
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संबंधित प्रश्न
Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.
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(a) x2 × y × z
(b) x × z × y2
(c) y × z2 × x
(d) y × z × x
The electrical resistivities of four materials P, Q, R and S are given below:
| P | `6.84xx10^8`Ωm |
| Q | `1.70xx10^8`Ωm |
| R | ` 1.0xx10^15`Ωm |
| s | `11.0xx10^-7`Ωm |
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| 2. | Electroplating | b. |
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