Question

Shown below is a semi-infinite wire carrying current I. What will be magnetic field at point P, which is d units away from one of its end?

• A. $\frac{{\mu }_{0}I}{8\pi d}$
• B. $\frac{{\mu }_{0}I}{d}$
• C. $\frac{{\mu }_{0}I}{2\pi d}$
• D. $\frac{{\mu }_{0}I}{4\pi d}$

Answer 1

The correct option is D $\frac{{\mu }_{0}I}{4\pi d}$

Solution is in the next video clip.