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Lorentz Force: If a charge +q is moving ...

Lorentz Force:
If a charge +q is moving in an electric field E, it experiences a force qE called Lorentz electric force.If the charge q is moving in a magnetic field `vecB`, it experiences a force `(vecvxxvecB)` called Lorentz magnetic force. If charge q is moving in a n electric field E as well as in magnetic field `vecB` simultaneously, the total force experience by the charge is the sum of these two forces and is called total Lorentz force.
If the charge is q is moving perpendicular to the magnetic field B, the work done by the magnetic field is

A

zero

B

qvB

C

`(qvB)/r`

D

qvBr

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