Electric Circuits Which of the following materials has highest electrical conductivity ? Copper. Aluminium. Steel. Silver. Copper. Aluminium. Steel. Silver. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which of the circuits power factor can be zero? capacitive. inductive. both ‘a’ and ‘b’ resistive. capacitive. inductive. both ‘a’ and ‘b’ resistive. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A delta connection contains three equal impedance of 60 Ω. The impedance of the equivalent star connection for each star load will be 20 Ω. 30 Ω. 15 Ω. 40 Ω. 20 Ω. 30 Ω. 15 Ω. 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
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? 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit shown below, what is the voltage across 5 Ω resistor? None of them -28.4 V. 34.4 V. -27.4 V. None of them -28.4 V. 34.4 V. -27.4 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three resistors of 4 ohm, 6 ohm and 8 ohm are in parallel. In which resistor, power dissipation will be maximum equal in all resistors. 6 Ohm. 8 Ohm. 4 Ohm. equal in all resistors. 6 Ohm. 8 Ohm. 4 Ohm. ANSWER DOWNLOAD EXAMIANS APP
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