Synopsis of Electrical Engineering

Important Multiple Choice Questions From Electrical and Magnetic Fields 1.        Transmission of power to a load over transmission line achieves optimum value when standing-wave ration (SWR) becomes A)      2:1 B)       1:2 C)       1:1 D)      1:4 2.        White noise is that signal whose frequency spectrum A)      Extends over infinite range B)       Has flat spectral density C)       Has spectral density varying as 1/f D)      Has limited number of frequency components 3.        The depth of penetration of wave in a lossy dielectric increases with increasing A)      Conductivity B)       Permeability C)       Wavelength D)      Permittivity 4.        The intrinsic impedance of copper at high frequencies is A)      Purely resistive B)       Purely inductive C)       Complex with a capacitive component D)      Complex with an inductive component 5.        When electromagnetic waves are propagated in a wave guide A)      They travel alo