A circular coil of (n) turns and radius (R) has a magnetic i... | Physics | SolveeIt | Solveeit

Today, August 18

Question

A circular coil of $n$ turns and radius $R$ has a magnetic induction of strength at its centre is

A

$B= \frac{\mu_{0}nI}{2R}$

B

$B= \frac{\mu_{0}nR}{\sqrt{2}R}$

C

$B= \frac{\mu_{0}nI}{R}$

D

$\sqrt{\frac{2}{3}} \frac{\mu_{0}I}{2R}$

Answer

$B= \frac{\mu_{0}nI}{2R}$

Explanation

Solution

Magnetic induction at the centre of loop is
$B= \frac{\mu_{0}nI}{2R}$