Electric Circuits The rms value of the voltage U(t)= 3 + 4cos(3t) {3 + 2(1.141)} V. 4.123 V. 5 V. 7 V. {3 + 2(1.141)} V. 4.123 V. 5 V. 7 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases? VR and I. Z and I. VL and Z. VL and VR. VR and I. Z and I. VL and Z. VL and VR. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The value of supply voltage for 400 W, 4 Ω load is 20 V. 400 V. 200 V. 40 V. 20 V. 400 V. 200 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following can not be connected in series unless they are identical? Voltage source. Resistance. Current source. Both of above. Voltage source. Resistance. Current source. Both of above. 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 Final value theorem is not applicable for which of the following? stable systems Both 2 and 3 unstable systems marginally stable systems stable systems Both 2 and 3 unstable systems marginally stable systems ANSWER DOWNLOAD EXAMIANS APP
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