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  • A charge Q is moving   distance in the magnitude field . Find the value of w

A charge Q is moving  \overrightarrow{dl} distance in the magnitude field \overrightarrow{B}. Find the value of workdone by \overrightarrow{B}:
Option: 1 -1
Option: 2 zero
Option: 3 infinite
Option: 4 1

Answers (1)

best_answer

\overrightarrow{\mathrm{F}}=\mathrm{q} \overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}}

Since the force on a point charge by the magnetic field is always perpendicular to V 
therefore Work by magnetic force on the point charge is zero.

Posted by

avinash.dongre

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