a metal wire of resistivity 6*10^-6 ohms cm and kength 198 cm has resistance of 7 ohm calculate its radius
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r=Pl÷a
a=Pl÷r
hope my answer is correct
a=Pl÷r
hope my answer is correct
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Hazehardik:
thks bro but you may also change cm into m
thks
hmm
unit bro .. resistivity unit is ohm metre
but you have given it in cm
ie ohm cm
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