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 FreeMore Alternating Current Questions
The current (I) in the inductance is varying with timeaccording to the plot shown in figure. Which one of thefollowing i...The power loss in pure inductor in an A.C. circuit will be :-...In a resistance of 25 Ω A.C. is passed to produce heat of the rate of 250 watt. The value of current in the resista...When 100V D.C. is applied across a coil a current of 1A flows through it. When 100V A.C. of 50 Hz is applied to the same...An alternating potential V = V0 sin ωt is applied across a circuit. As a result the current I = I0 sin flows in it....