1- The impedance of a capacitor increases with increasing frequency. (a) True (b) False 2- If the load impedance is 20-j20, the power factor is (a)-45 (e) none of these (b) 0 (d) (d) 3- A series RL circuit has VR = 10 V and VL = 6 V. The supply voltage is: (c) 1 (c) 1 0.7071 0.7071 (a) -4 V (b) 4 V (c) 11.66 V (d) 16 V 4- In the power triangle (a) 1000 VAR leading (c) 866 VAR leading shown in Fig.1(a), the reactive power is: (b) 1000 VAR lagging (d) 866 VAR lagging 5- For the power triangle in Fig.1(b), the apparent power is: (a) 2000 VA (c) 866 VAR (b) 1000 VAR (d) 500 VAR 60° 500 W (ə) 30° (b) 1000 V
1- The impedance of a capacitor increases with increasing frequency. (a) True (b) False 2- If the load impedance is 20-j20, the power factor is (a)-45 (e) none of these (b) 0 (d) (d) 3- A series RL circuit has VR = 10 V and VL = 6 V. The supply voltage is: (c) 1 (c) 1 0.7071 0.7071 (a) -4 V (b) 4 V (c) 11.66 V (d) 16 V 4- In the power triangle (a) 1000 VAR leading (c) 866 VAR leading shown in Fig.1(a), the reactive power is: (b) 1000 VAR lagging (d) 866 VAR lagging 5- For the power triangle in Fig.1(b), the apparent power is: (a) 2000 VA (c) 866 VAR (b) 1000 VAR (d) 500 VAR 60° 500 W (ə) 30° (b) 1000 V
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter21: Resistive-capacitive Series Circuits
Section: Chapter Questions
Problem 6RQ: A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating...
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