Question

A current of $\frac{1}{4\pi}$ amp is flowing in a long straight conductor. The line, integral of magnetic induction around a closed path enclosing the current carrying condiictor is

• A. $4\pi \times 10^{-7}\,Wb/m$
• B. $10^{-7}\,Wb/m$
• C. $16\pi^2 \times 10^{-7}\,Wb/m$
• D. zero

Answer 1

Answer: (B)

$W=\mu_0 \,i^0$