Question

A current of 1A is flowing through a straight conductor of length 16cm. The magnetic induction (in tesla) at a point 10cm from the either end of the wire is :

• A. $\frac{8}{3} \times 10^{-6}$
• B. $\frac{1}{6\sqrt2} \times 10^{-5}$
• C. $\frac{1}{6\sqrt3} \times 10^{-6}$
• D. $\frac{\sqrt3}{6} \times 10^{-6}$

Answer 1

Answer: (A)

$B=\frac{\mu_0\,I}{4\pi\,r}(\sin\,\phi_1+\sin\,\phi_2)$