Question

In a current carrying loop of area $A$ a current $I$ is flowing. loop is placed inside a magnetic field H in upward direction. Find the potential energy of current loop inside the magnetic filed.

• A. $I\times A\times H$
• B. $I^2\times A\times H$
• C. $\frac{I}{A}\times H$
• D. None of these

Answer 1

The correct option is A $I\times A\times H$

Magnetic moment of the loop $\mu =I\times A$

Potential energy of the loop inside the magnetic field $P.E=\mu \times H$

$⟹$ $P.E=I\times A\times H$