The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively the rms value of the voltage across the series combination is ______ V. 360 450 200 250 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following ABCD parameters is unit less? A and B. A and D. A and C. B and C. TRUE ANSWER : ? YOUR ANSWER : ?
In a lead acid cell, hydrogen is liberated at none of the plates. both plates. negative plate. positive plate. TRUE ANSWER : ? YOUR ANSWER : ?
The delta equation of given star connected impedance ZQR is equal to (5 + j10 / 3) Ω. (10 + j30) Ω. 40 Ω. (20 + j10) Ω. TRUE ANSWER : ? YOUR ANSWER : ?
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant? 2 msec 2 μsec 4 μsec 4 msec TRUE ANSWER : ? YOUR ANSWER : ?
Two 1 kΩ, 1 W resistors are connected in series. Their combine resistance and wattage will be 2 kΩ, 1 W. 2 kΩ, 0.5 W. 0.5 kΩ, 2 W. 1 kΩ, 1 W. TRUE ANSWER : ? YOUR ANSWER : ?
The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 100 Ohms. 400 Ohms. 200 Ohms. 50 Ohms. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is applicable for both linear and non-linear circuits? Superposition theorem. None of these . Norton’s theorem. Thevnin’s theorem. TRUE ANSWER : ? YOUR ANSWER : ?
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating. 0.01 A. 1 A. 0.316 A. 0.1 A. TRUE ANSWER : ? YOUR ANSWER : ?
VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is RBY. BRY. YRB. RYB. TRUE ANSWER : ? YOUR ANSWER : ?