Consider an electromagnetic wave, traveling through empty space. The oscillating
ID: 2075953 • Letter: C
Question
Consider an electromagnetic wave, traveling through empty space.
The oscillating electric and magnetic fields point ______ to each other and the direction of motion at all times.
clockwise or counterclockwise
perpendicular
There is not enough information to answer this question.
parallel
The original form of Ampere's Law was incomplete since it did not include a term for...
...electromagnetic radiation.
...magnetic fields inducing electric fields.
...magnetic monopoles.
...electric fields inducing magnetic fields.
Ultimately, the source of all electromagnetic radiation is...
...constant currents.
...accelerating electric charges.
...changing electric and magnetic fields.
...magnetic poles.
clockwise or counterclockwise
perpendicular
There is not enough information to answer this question.
parallel
Explanation / Answer
the Plane Electromagnetic wave is given by--
E(x,t) = Emaxcos(kx - t + ), B(x,t) = Bmaxcos(kx - t + ).
For EM waves B & E are always perpendicular to each other & perpendicular to the propagation direction.
2
option 2 In the case of static electric field, the line integral of the magnetic field around a closed loop is proportional to the electric current flowing through the loop
3 accelerating charges ( EM waves refers to the waves of the electromagnetic field, propagating (radiating) through space carrying electromagnetic radiant energy.
E(x,t) = Emaxcos(kx - t + ), B(x,t) = Bmaxcos(kx - t + ).
For EM waves B & E are always perpendicular to each other & perpendicular to the propagation direction.
2
option 2 In the case of static electric field, the line integral of the magnetic field around a closed loop is proportional to the electric current flowing through the loop
3 accelerating charges ( EM waves refers to the waves of the electromagnetic field, propagating (radiating) through space carrying electromagnetic radiant energy.