A charge Q is moving dl distance in the magnetic field B- Find the value of work done by B-

Force in magnetic field: F=q(V×B) Since force F on a point charge by magnetic field nbsp;B is always perpendicular to V, so work done by magnetic field ...

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Standard XII

Physics

Is Electrostatic Force Conservative

A charge Q is...

Question

A charge $Q$ is moving $\to d l$ distance in the magnetic field $\to B$ . Find the value of work done by $\to B$ .

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Solution

The correct option is D Zero
Force in magnetic field: $\to F = q (\to V \times \to B)$ Since force $\to F$ on a point charge by magnetic field $\to B$ is always perpendicular to $\to V$ , so work done by magnetic field is always zero.

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A charge Q is moving →dl distance in the magnetic field →B. Find the value of work done by →B.

The correct option is D ZeroForce in magnetic field: →F=q(→V×→B) Since force →F on a point charge by magnetic field →B is always perpendicular to →V, so work done by magnetic field is always zero.

A charge $Q$ is moving $\to d l$ distance in the magnetic field $\to B$ . Find the value of work done by $\to B$ .

The correct option is D Zero
Force in magnetic field: $\to F = q (\to V \times \to B)$ Since force $\to F$ on a point charge by magnetic field $\to B$ is always perpendicular to $\to V$ , so work done by magnetic field is always zero.