Out of the following options which one can be used to produce a propagating electromagnetic wave?

  • Option 1)

    A charge moving at constant velocity

  • Option 2)

    A stationary charge

  • Option 3)

    A chargeless particle

  • Option 4)

    An accelerating charge

 

Answers (1)

 

Total radiant Flux (Power) -

P = frac{q^{2}a^{2}}{6piepsilon _{o}c^{2}}

 

q = Charge

a  = Acceleration of particle

c = Speed of light in vacuum

- wherein

The accelerated charge particle produce EM wave. P is total radiant flux emitted by charge at any instant.

 

 Electromagnetic wave can be produced by an accelerating charge.


Option 1)

A charge moving at constant velocity

This option is incorrect.

Option 2)

A stationary charge

This option is incorrect.

Option 3)

A chargeless particle

This option is incorrect.

Option 4)

An accelerating charge

This option is correct.

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