CBSE BOARD XII, asked by subbalakshmi97, 10 months ago

a tungsten coil has a resistance 16 ohm at 20 degree Celsius if the temp coefficient resistance of tungsten is 0.004 per degree centigrade calculate the resistance of coil at 80 degree Celsius​

Answers

Answered by pratimm86
3

Answer:

Explanation:r=rho l / a

L=length

A=area of cross-section

Rho=intensity

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