(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

## \frac { - d \phi }{dt} = V ##

V denotes emf.

The current is in ## \hat \phi ## direction.

Magnetic force is along ## ~\hat s ## direction.

Where ## ~\hat s ## is the radially outward direction in cylindrical coordinate system.

So, torque ## \vec \tau ## about an axis passing through the center and perpendicular to the plane of loop is 0.

So, there is no change in angular momentum.

Hence, the option (b) is answer.

Is this correct?

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# Homework Help: Angular momentum due to electromagnetic induction

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