MCQ
The magnetic field at centre, P will be:
- A$\frac{\mu_0}{4 \pi}$
- B$\frac{\mu_0}{\pi}$
- ✓$\frac{\mu_0}{2 \pi}$
- D$4 \mu_0 \pi$
✓
Answer
Correct option: C.
$\frac{\mu_0}{2 \pi}$
(C) $\frac{\mu_0}{2 \pi}$
$\frac{\mu_0}{4 \pi} \frac{2(5-2.5)}{25}=\frac{\mu_0}{2 \pi}$
$\frac{\mu_0}{4 \pi} \frac{2(5-2.5)}{25}=\frac{\mu_0}{2 \pi}$
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