Aphasoris________? A. a line which represents the magnitude and phase of an alternating quantity B. a line representing the magnitude and direction of an alternating quantity C. a coloured tag or band for distinction between different phases of a 3-phase…
Capacitive susceptance is a measure of__________? A. reactive power in a circuit B. the extent of neutralisation of reactive power in a circuitC. a purely capacitive circuit’s ability to pass current D. a purely capacitive circuit’s ability to resist the…
What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ? A. 0° B. 45°C. 90° D. 180°
In a parallel R-C circuit, the current always________the applied voltage? A. lagsB. leads C. remains in phase with D. none of the above
Which of the following refers to a parallel circuit ? A. The current through each element is same B. The voltage across element is in proportion to it’s resistance value C. The equivalent resistance is greater than any one of…
In a sine wave the slope is constant_______? A. between 0° and 90° B. between 90° and 180° C. between 180° and 270°D. no where
In an A.C. circuit power is dissipated in____________? A. resistance only B. inductance only C. capacitance only D. none of the above
Skin effect occurs when a conductor carries current at_______ frequencies A. very low B. low C. mediumD. high
The power is measured in terms of decibles in case of_________? A. electronic equipment B. transformers C. current transformers D. auto transformers
At _______ frequencies the parallel R-L circuit behaves as purely resistive A. low B. very low C. highD. very high