A 3Ω resistor having 2A current will dissipate the power of 12 W. 4 W. 8 W. 2 W. TRUE ANSWER : ? YOUR ANSWER : ?
In which braking back emf exceeds supply voltage? Regenerative. None of these. Plugging. Dynamic. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following lamp has least resistance ? 25 W, 220 V. 100 W, 220 V. 60 W, 220 V. 200 W, 220 V. TRUE ANSWER : ? YOUR ANSWER : ?
Select the wave that has the least value of form factor. Triangular wave. Square wave. Rectangular wave. Sine wave. TRUE ANSWER : ? YOUR ANSWER : ?
For the network shown below when I = 0, V = 20 V and when R = 0, I = 10 A. If now R = 3 Ω what is the value of the current I? 6 A. 4 A. 5 A. 10 A. TRUE ANSWER : ? YOUR ANSWER : ?
Whenever current is supplied by a source its terminal voltage increases. decreases. remains constant. increases exponentially. TRUE ANSWER : ? YOUR ANSWER : ?
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 TRUE ANSWER : ? YOUR ANSWER : ?
There is a ________ between two nodes of signal flow graph None of these branch tree link TRUE ANSWER : ? YOUR ANSWER : ?
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant? 4 μsec 2 msec 4 msec 2 μsec TRUE ANSWER : ? YOUR ANSWER : ?
The internal resistance of a practical voltage source is considered to be connected in None of these parallel. series. either parallel or series. TRUE ANSWER : ? YOUR ANSWER : ?