Electric Circuits Which of the following has least resistivity? Mercury. Lead. Copper. Aluminium. Mercury. Lead. Copper. Aluminium. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If 1 A current flows in a circuit, the number of electrons flowing through this circuit is 1.6 × 1019 0.625 × 1019 0.625 × 10 - 19 1.6 × 10 - 19 1.6 × 1019 0.625 × 1019 0.625 × 10 - 19 1.6 × 10 - 19 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A variable capacitance is one whose capacitance changes with temperature. can be changed manually or by mechanical force. changes with voltage. changes with time. changes with temperature. can be changed manually or by mechanical force. changes with voltage. changes with time. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Energy efficiency during electroplating is usually in the range 85 to 90%. 50 to 80%. 80 to 85%. 90 to 99%. 85 to 90%. 50 to 80%. 80 to 85%. 90 to 99%. 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? 1.8 µF. 4.78 µF. 10.54 µF. 8.51 µF. 1.8 µF. 4.78 µF. 10.54 µF. 8.51 µF. ANSWER DOWNLOAD EXAMIANS APP
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? 1000 Hz. 1 Hz. 10 Hz. 100 Hz. 1000 Hz. 1 Hz. 10 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
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