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Advanced PhysicsQ&A LibraryWhich one of the followings is a source of electromagnetic waves? A) stationary electric chargesB) none of the answersC) electric charges moving on a circle with constant speedD) a stationary permanent magnetE) electric charges moving on a straight line with constant speedQuestion

Asked Nov 5, 2019

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Which one of the followings is a source of electromagnetic waves?

A) stationary electric charges

B) none of the answers

C) electric charges moving on a circle with constant speed

D) a stationary permanent magnet

E) electric charges moving on a straight line with constant speed

Step 1

Electromagnetic waves consist of electric and magnetic field oscillating perpendicular to each other and to the direction of its propagation. An electric filed varying with space and time produces a magnetic field and a magnetic field varying with space and time produces an electric field.

Step 2

Stationary charges produce electrostatic field whereas charges in uniform motion produce m...

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