Electric Circuits Among the options which metal has the highest electrical conductivity? Aluminium. Stranded aluminium. Steel. Copper. Aluminium. Stranded aluminium. Steel. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A current in a circuit is given by, If the current flows through the 5 Ω resistor, find power dissipated at t = 0? 20 Watts. 40 Watts. 15 Watts. 10 Watts. 20 Watts. 40 Watts. 15 Watts. 10 Watts. 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? 1 Hz. 100 Hz. 10 Hz. 1000 Hz. 1 Hz. 100 Hz. 10 Hz. 1000 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 4 Ω. 400 Ω. 40 Ω. 800 Ω. 4 Ω. 400 Ω. 40 Ω. 800 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is increase by two times. remain same. halved. doubled. increase by two times. remain same. halved. doubled. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is 2:3:6. 2:4:6. 6:4:2. 6:3:2. 2:3:6. 2:4:6. 6:4:2. 6:3:2. ANSWER DOWNLOAD EXAMIANS APP
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