Electric Circuits The phase angle difference between current and voltage is 90o, the power will be minimum. VI. maximum. zero. minimum. VI. maximum. zero. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R. 3 Ω. 1 Ω. 2 Ω. 4 Ω. 3 Ω. 1 Ω. 2 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the SI unit of electric current ? Faraday. Ohm. Ampere. None of these Faraday. Ohm. Ampere. None of these 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? 135.86 Ω. 63.7 Ω. 0.015 Ω. 1.765 Ω. 135.86 Ω. 63.7 Ω. 0.015 Ω. 1.765 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is 2f0. f0 / 4. still f0. f0 / 2. 2f0. f0 / 4. still f0. f0 / 2. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the real power in AC operation? VIcosφ. None of these. Both option A and B. Apperant power × cosφ. VIcosφ. None of these. Both option A and B. Apperant power × cosφ. ANSWER DOWNLOAD EXAMIANS APP
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