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 6:4:2. 2:3:6. 2:4:6. 6:3:2. 6:4:2. 2:3:6. 2:4:6. 6:3:2. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? dielectric losses increases. short circuit. dielectric losses decreases. open circuit. dielectric losses increases. short circuit. dielectric losses decreases. open circuit. 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 doubled. halved. remain same. increase by two times. doubled. halved. remain same. increase by two times. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA. 130 900 400 250 130 900 400 250 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Five cells are connected in series in a row and then four such rows are connected in parallel to Feed the current to a resistive load of 1.25Ω. Each cell has an emf of 1.5 V with internal resistance Of 0.2Ω. The current through the load will be 5 A 3.33 A 23.33 A 1 A 5 A 3.33 A 23.33 A 1 A 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 15 Ω. 40 Ω. 30 Ω. 20 Ω. 15 Ω. 40 Ω. 30 Ω. 20 Ω. ANSWER DOWNLOAD EXAMIANS APP
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