The rate of rise of current through an inductive coil is maximum? Mark as favorite Copy Link at 63.2% of its maximum steady value at the start of the current flow after one time constant near the final maximum value of current Check Answer
Permeance is to reluctance as conductance is to? Mark as favorite Copy Link ampere turns inductance capacitance resistance Check Answer
Energy stored by a coil is doubled when its current is increased by percent? Mark as favorite Copy Link 25 41.4 50 100 Check Answer
Conductance is analogous to? Mark as favorite Copy Link permeance reluctance flux inductance Check Answer
An air gap is usually inserted in magnetic circuits to? Mark as favorite Copy Link increase m.m.f. increase the flux prevent saturation none of the above Check Answer
The area of hysteresis loss is a measure of? Mark as favorite Copy Link permittivity permeance energy loss per cycle magnetic flux Check Answer
A ferrite core has less eddy current loss than an iron core because? Mark as favorite Copy Link ferrites have high resistance ferrites are magnetic ferrites have low permeability ferrites have high hysteresis Check Answer
Laminated cores, in electrical machines, are used to reduce? Mark as favorite Copy Link copper loss eddy current loss hysteresis loss all of the above Check Answer
Reciprocal of reluctance is? Mark as favorite Copy Link reluctivity permeance permeability susceptibility Check Answer
The transformer cores operating at microwave frequency range, are usually made of? Mark as favorite Copy Link carbon copper silicon steels ferrites Check Answer