Question

A circular coil of radius 4 cm and of 20 turns carries a current of 3 amperes. It is placed in a magnetic field of intensity of 0.5 . The magnetic dipole moment of the coil is

• A. 0.15 ampere $- m ^ { 2 }$
• B. 0.3 ampere $- m ^ { 2 }$
• C. 0.45 ampere $- m ^ { 2 }$
• D. 0.6 ampere $- m ^ { 2 }$

Answer 1

Answer: (B)

0.3 ampere $- m ^ { 2 }$

Answer 2