What is the resistance of a wire of length of 1m, resistivity of 1.24*10^-6ohm metre and thickness of 7*10^-4m
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Answer:
3.222ohm
Given
- length L= 1m
- resistivity =1.24×10^-6 ohm. metre
- thickness d=7×10^-4 metres
- so area =3.84845×10^_7 sq. mt
- so resistance=
- =3.22 ohms
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