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? 1000 Hz. 1 Hz. 10 Hz. 100 Hz. 1000 Hz. 1 Hz. 10 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 6 Ω. 4 / 3 Ω. 3 / 4 Ω. 3 / 2 Ω. 6 Ω. 4 / 3 Ω. 3 / 4 Ω. 3 / 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Current efficiency in electroplating is usually 70 to 80 %. 99 %. 50 to 60 %. 90 to 98 %. 70 to 80 %. 99 %. 50 to 60 %. 90 to 98 %. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Bulb in street lighting are connected in series. parallel. series parallel. end of end. series. parallel. series parallel. end of end. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The thevnin equivalent of the circuit shown in the figure is 1.5V, 1.5 Ohm 1.5V, 5/6 Ohm 0.75 V, 1.5 Ohm 0.75V, 5/6 Ohm 1.5V, 1.5 Ohm 1.5V, 5/6 Ohm 0.75 V, 1.5 Ohm 0.75V, 5/6 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The capacitance of a parallel plate capacitor can be varied by 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. changing the dielectric medium only. changing the overlapping area of the plates only. ANSWER DOWNLOAD EXAMIANS APP
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