Alternating CurrentHard

Question

If the magnetic field of a light wave oscillates parallel to y-axis and is given by By = Bm sin (kz - ωt), The direction of a wave travel and the axis along which the electric vector oscillates is :

Options

A.+ ve y - axis, z-axis
B.-ve z -axis, x - axis
C.-ve x -axis, y-axis
D.-ve x -axis, z-axis

Solution

Give By = Bm sin(kz - ωt). According to this equation the direction of propagation is along z axis. The direction of election vector must be perpendicular both y and z-axis. So it is along x-axis.

Create a free account to view solution

View Solution Free
Topic: Alternating Current·Practice all Alternating Current questions

More Alternating Current Questions

The graph shows variation of I with f for a series R-L-C network. Keeping L and C constant. If R decreases :- (a) Maximu...In an AC circuit an alternating voltage e = 200√2 sin 100 t volts is connected to a capacitorof capicity 1μ F...Impedance of the following circuit will be :...The hot wire ammeter measures :-...Two different coils have self-inductance L1 = 8 mH and L2 = 2 mH. The current in one coil is increased at a comsatnt rat...