CBSE Class 10 Answered
when a P.D. of 2 volt is applied across the ends of a wire 5 m length. A current of 1amp is found to flow through it. calculate
1- res. per unit length of wire
2-res of 2 m length of wire
3-res across the ends of the wire if it is doubled on itself.
Asked by PALLAVI GARG | 23 Jun, 2013, 12:26: AM
Expert Answer
Using ohms law
V = IR
R = V/I
R = 2/1 = 2 ohms
a. Hence, resistance/length = 2/5 = 0.4 ohms/m
Answered by | 23 Jun, 2013, 05:26: AM
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