Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of each of them decreases. each of them increases. copper increases and germanium decreases. copper decreases and germanium increases. each of them decreases. each of them increases. copper increases and germanium decreases. copper decreases and germanium increases. 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 A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance? 1.765 Ω. 135.86 Ω. 0.015 Ω. 63.7 Ω. 1.765 Ω. 135.86 Ω. 0.015 Ω. 63.7 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the value of C? 8.51 µF. 10.54 µF. 4.78 µF. 1.8 µF. 8.51 µF. 10.54 µF. 4.78 µF. 1.8 µF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The norton equivalent of the circuit shown in the figure is 1A, 5/6 Ohm 1A, 1.5 Ohm 0.75A, 5/6 Ohm 0.75 A, 1.5 Ohm 1A, 5/6 Ohm 1A, 1.5 Ohm 0.75A, 5/6 Ohm 0.75 A, 1.5 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms have no electric charge because they have an equal number of neutrons and protons. have neutrons in their nuclei. have an equal number of electrons and protons. have an equal number of charged and non charged particles. have an equal number of neutrons and protons. have neutrons in their nuclei. have an equal number of electrons and protons. have an equal number of charged and non charged particles. ANSWER DOWNLOAD EXAMIANS APP
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