First slide

Magnetic field due to a current carrying circular ring

Question

A circular coil of one turn carrying a current produces a magnetic field of induction of magnitude B at the center. If there were another circular coil of one turn whose area is double that of the area of the first coil and carries the same current, the magnitude of the magnetic induction at the center will be

Easy

A

2 B
B

B/2
C

$\frac{B}{\sqrt{2}}$
D

$\sqrt{2} B$

Solution

$B = \frac{μ_{0} i}{2 r} i f a r e a o f t h e c o i l i s d o u b l e r i n c r e a s e s t o \sqrt{2} t i m e s B d e c r e a s e s b y \sqrt{2} t i m e s$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App