Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of each of them increases. copper decreases and germanium increases. copper increases and germanium decreases. each of them decreases. each of them increases. copper decreases and germanium increases. copper increases and germanium decreases. each of them decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Pure metal generally have high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. low conductivity and zero temperature coefficient. low conductivity and high temperature coefficient. high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. low conductivity and zero temperature coefficient. low conductivity and high temperature coefficient. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 100 μF capacitor supplied from 3 V source with a frequency of 50 Hz. The capacitive reactance is 7.96 Ω. 63.68 Ω. 15.92 Ω. 31.84 Ω. 7.96 Ω. 63.68 Ω. 15.92 Ω. 31.84 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of 100 W, 200 V lamp is 200 Ω. 800 Ω. 1600 Ω. 400 Ω. 200 Ω. 800 Ω. 1600 Ω. 400 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit shown in the figure the voltage across the 2 Ω resistor is 3 V. 4 V. 2 V. 1 V. 3 V. 4 V. 2 V. 1 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem? Superposition theorem. Millman’s theorem. Thevenin’s theorem. Norton’s theorem. Superposition theorem. Millman’s theorem. Thevenin’s theorem. Norton’s theorem. ANSWER DOWNLOAD EXAMIANS APP
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