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? 10 Hz. 1000 Hz. 100 Hz. 1 Hz. 10 Hz. 1000 Hz. 100 Hz. 1 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of copper increases and germanium decreases. each of them increases. copper decreases and germanium increases. each of them decreases. copper increases and germanium decreases. each of them increases. copper decreases and germanium increases. each of them decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Can a 250 V, 5 A single way switch be used in place of a 250 V, 15 A Switch? No. Single way switch doesn operate at such current ratings. Yes. Single way switch doesn exist. No. Single way switch doesn operate at such current ratings. Yes. Single way switch doesn exist. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The terminals across the source are ___________ if a voltage source is to be neglected. replaced by a series resistance. replaced by a shunt resistance. open circuited. short circuited. replaced by a series resistance. replaced by a shunt resistance. open circuited. short circuited. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits To reduce hysteresis loss, we use laminated sheets. CRGO steel. copper bars. soft-iron. laminated sheets. CRGO steel. copper bars. soft-iron. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance? None of these. 0.058 H. 0.049 H. 0.029. None of these. 0.058 H. 0.049 H. 0.029. ANSWER DOWNLOAD EXAMIANS APP
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