Two coaxial circular loops lie in the same plane

PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Two coaxial circular loops lie in the same plane. Loop A has radius

10\,\text{cm}

and carries a current of

5.0\,\text{A}

clockwise (1 turn). Loop B has radius

5.0\,\text{cm}

, has

2

turns and carries current in the anticlockwise sense. What current must flow in loop B so that the net magnetic dipole moment of the system is zero?