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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.
संबंधित प्रश्न
Find the equivalent resistance between points A and B.

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(a) conductor
(b) resistor
(c) superconductor
(d) insulator
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(i) Showing low resistivity,
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(iii) Showing moderate resistivity.
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