Question

The effective length of a magnet is 31.4 cm and its pole strength is 0.5 Am. The magnetic moment, if it is bent in the form of a semicircle will be

• A. $0.1 \mathrm { Am } ^ { 2 }$
• B.
• C.
• D.

Answer 1

Answer: (A)

$0.1 \mathrm { Am } ^ { 2 }$

Answer 2

New magnetic moment