List of top Electrical Engineering Questions

In a single-phase semi-converter without a freewheeling diode, for discontinuous conduction and extinction angle \( \beta>\pi \), each SCR conducts for the period:
What is the width of the main lobe of the frequency response of a rectangular window of length \( M-1 \)?

The direction of current flow in the circuit is such that the induced magnetic field produced by the induced current will oppose the original magnetic field. This is:

The flux set up by the armature current, which does not cross the air gap and takes a different path, is called:

Four identical alternators each rated for 20 MVA, 11 kV having a sub-transient reactance of 16% are working in parallel. The short circuit level at the bus bars is:
The breakdown strength of air for small gaps (1 mm) under uniform field condition and standard atmospheric conditions will be:
The Impulse Response of an initially relaxed linear system is \( e^{-2t}u(t) \). To produce a response of \( te^{-2t}u(t) \), the input should be:
The most important test to assert the proper functions of a surge diverter is:
The 8051 program segment, which performs ‘software polling’ to check if the Timer-0 counting has completed, is:
Electric traction uses a power supply of:
A system has two zeros and four poles. Then two asymptotes in the root loci plane move towards infinity along:
Time lag for breakdown is:
The resultant magnetic flux generated in the closed surface will be
Spot welding is used for:
Loop transfer function of a feedback system is: \[ G(s)H(s) = \frac{10}{s - 2} \] Assume the Nyquist contour in the clockwise direction. Then the Nyquist plot of \( G(s) \) encircles \(-1 + j0\):

Corona loss increases with:

The output of the following program is: 

The nuclear plants are suitable for:

A single-phase inverter has a square wave output voltage. The percentage of the fifth harmonic component in relation to the fundamental component is:
Magnetizing inrush current is rich in:
The transfer function of a first-order controller is given as: \[ G_c(s) = K \frac{(s + a)}{(s + b)} \] where \( K, a, b \) are positive real numbers. The condition for this controller to act as a phase lag compensator is:
The RMS output voltage at fundamental frequency of a single-phase, full-bridge inverter with input voltage of 48V DC, feeding a load of 2.4 \( \Omega \) is:

On execution of the program segment: 

If all the poles of \( H(z) \) are outside the unit circle, then the system is said to be:

To eliminate the 5th harmonic voltage from the phase voltage of an alternator, the coils should be short-pitched by an electrical angle of: