Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 10 Hz. 1 Hz. 100 Hz. 1000 Hz. 10 Hz. 1 Hz. 100 Hz. 1000 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called the instantaneous value of an alternating current? The value of peak current at any instant. The value of alternating frequency at any instant. The value of peak quantity at any instant. The value of alternating quantity at any instant. The value of peak current at any instant. The value of alternating frequency at any instant. The value of peak quantity at any instant. The value of alternating quantity at any instant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star? 25 % of the original load. 66.66 % of the original load. 50 % of the original load. 33.33 % of the original load. 25 % of the original load. 66.66 % of the original load. 50 % of the original load. 33.33 % of the original load. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A conductor of length l meters moves at right angles to a uniform magnetic field of flux density B = 1.5 T. if the velocity of revolution of the conductor is 50 ms-1 then induced e.m.f. in the conductor is 0 V. 100 V. 75 V. 125 V. 0 V. 100 V. 75 V. 125 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is f0 / 2. 2f0. still f0. f0 / 4. f0 / 2. 2f0. still f0. f0 / 4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the given figure the value of the source voltage is 44 V. 24 V. 30 V. 12 V. 44 V. 24 V. 30 V. 12 V. ANSWER DOWNLOAD EXAMIANS APP
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