Please solve fifth numerical..........
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Resistance of a conductor depends upon :
1. length
2.area
3.Temperature
4.material of the conductor used
Its si unit is "ohm"
hope it will help you
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puneet098:
ok
first convert 0.5mm into m
it is 0.25*10(-³) m radius
find area by πr²
and area will be 0.19625*10power -6 (π=3.14)
now by Formula l=(r*a)/rho
l=(1*0.9625*10(power -6))/1.6*10(power -8)
and you get 12.26..
hope you can understand
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