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प्रश्न
Name the material of wire used for making standard resistances. Give a reason.
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उत्तर
Constantan is used for making standard resistances. The reason is that its resistance remains almost unaffected with change in temperature.
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संबंधित प्रश्न
The diagram below shows part of a circuit:
If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω
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