Bela
02 Oct 2016
The force per unit length on a long straight wire carrying current of 5 A due to parallel wire carrying 8 A current will be (distance between the wires = 4 cm).
2 ×10−4 N/M
4 ×10−4 N/M
2 ×10−3 N/M
4 ×10−3 N/M
or
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