Two long parallel conductors carry currents of and respectively in the same direction…

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Two long parallel conductors carry currents of

20\,\text{A}

and

30\,\text{A}

respectively in the same direction and are separated by

5.0\,\text{cm}

. Calculate the magnitude of the force per unit length on either conductor. (a)

1.2\times10^{-3}\,\text{N\,m}^{-1}

(b)

2.4\times10^{-3}\,\text{N\,m}^{-1}

(c)

4.8\times10^{-3}\,\text{N\,m}^{-1}

(d)

2.4\times10^{-2}\,\text{N\,m}^{-1}