4.On what factor the resistance of conductor depends give its mathematical expression.
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Resistance of a conductor depends on...
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R=v/i
r=p L/A
as resistance is depands on current and volt is directly proportional to volt and inversly proportional to current
it also depand on length of conductor and cross sectional area of conductor as per above equation
r=p L/A
as resistance is depands on current and volt is directly proportional to volt and inversly proportional to current
it also depand on length of conductor and cross sectional area of conductor as per above equation
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