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A force F , acting on an electric charge q , in presence of an electromagnetic field, moves the charge parallel to the magnetic field with velocity v . Then F is equal to (where E and B are electric field and magnetic field respectively)

Options

  1. Aq E
  2. Bq( v B )
  3. Cq( v E )
  4. Dq ~B

Correct answer

A. q E

Step-by-step solution

The correct answer is option (A)

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