Resistance of a wire at C is 20 and at C is 60 . At what temperature its resistance is 25 ? |
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a) |
b) |
c) |
d) |

Resistance of a wire at C is 20 and at C is 60 . At what temperature its resistance is 25 ? |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

Here, Where is the temperature coefficient of resistance. Dividing Eq. (ii) by Eq. (i), we get Again, Dividing Eq. (iv) by Eq (iii), we get |

127 votes

127