A magnet of total magnetic moment 10⁻² i A-m² is placed in a time varying magnetic field, B i (cos ω t) where B = 1 Tesla and ω = 0.125 rad/s. The work done for reversing the direction of the magnetic moment at t = 1 second, is -

Magnetic Effects of Current and Magnetism: JEE Main 2019 Physics question

JEE Main 2019 · 10 Jan, Morning shift · Q7612

JEE Main 201910 Jan, Morning shiftPhysicsHardMagnetic Effects of Current and Magnetism165× since 2002

A magnet of total magnetic moment 10⁻²

{\widehat i}

A-m² is placed in a time varying magnetic field, B

{\widehat i}

(cos

\omega t

) where B = 1 Tesla and

\omega

= 0.125 rad/s. The work done for reversing the direction of the magnetic moment at t = 1 second, is -

JEE Main 2019 Magnetic Effects of Current and Magnetism Question with Solution (10 Jan Morning shift, Q7612) | JEE Arc