Electrical Engi...

The current and potential coil of a dynamometer type wattmeter were accidentally interchanged while connecting. After energizing the circuit, it was observed that the wattmeter did not show the reading. This could be due to the

In a 132 kV system, Phase to Ground capacitance is 0.01 μF and inductance is 4H. Calculate the critical resistance to be connected in order to eliminate restriking if a magnetizing current of 5 A is interrupted by the circuit

In the figure shown below, the duty ratio of the buck converter is α and the duty ratio of the boost converter is β. The input voltage of the buck converter is 15 V and the output voltage of the boost converter is 45 V. Which of the following equation satisfy the correct relationship between is α and β?

In the system shown in the figure, r(t) = sin ωt

The steady-state response c(t) will exhibit a resonance peak at a frequency of:

In a double cage and deep bar induction machine which effect/rule controls the rotor resistance & inductance?

In a biased differential relay the bias is defined as ratio of

Figure-1 shows a 3-phase inverter fed by a constant voltage source V_DC and connected to a balanced resistive load at the output. Each switching device may conduct for 120° (or) 180°. The wave form shown in the figure- II is the

When the sinusoidal steady state current is called the symmetrical short circuit current, then the unidirectional transient component is called

As compared to power MOSFET, a BJT has