Science, asked by akshatdewangan10, 2 months ago

Copper wire of diameter 0.5mm having the resistivity of 1.6 x 10‐⁶ ohm-cm.

What length of this wire is required to make 40 ohm coil. What will be the change in resistance if diameter of wire is doubled,

Answers

Answered by disraven1063

1

Answer

Therefore, the length of the wire is 122.7 m and the new resistance becomes 1/4 times.

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