A circular loop carries a steady current and has area

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A circular loop carries a steady current

I

and has area

A

. It is reshaped so that its area becomes

4A

while the current is reduced to

\dfrac{I}{2}

. The magnetic dipole moment of the loop will be (a)

\text{halved}

(b)

\text{doubled}

(c)

\text{unchanged}

(d)

\text{quadrupled}