Electric Circuits Condition for a balanced 3 - phase load is that, each phase has the same value of __________________. resistance. power factor. impedance. all of these. resistance. power factor. impedance. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The terminals across the source are ___________ if a voltage source is to be neglected. short circuited. open circuited. replaced by a series resistance. replaced by a shunt resistance. short circuited. open circuited. replaced by a series resistance. replaced by a shunt resistance. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitance of a parallel plate capacitor can be varied by changing the dielectric medium only. changing the overlapping area of the plates only. All of these changing the distance between the plates only. changing the dielectric medium only. changing the overlapping area of the plates only. All of these changing the distance between the plates only. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as Zsc-Zoc (Zsc . Zoc)½ Zsc/Zoc Zsc+Zoc Zsc-Zoc (Zsc . Zoc)½ Zsc/Zoc Zsc+Zoc ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following can not be connected in series unless they are identical? Current source. Resistance. Both of above. Voltage source. Current source. Resistance. Both of above. Voltage source. ANSWER DOWNLOAD EXAMIANS APP
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