ISRO 2023 Quiz 17

A three-phase diode bridge rectifier is shown in figure. Input voltage to the bridge is 400 V at 50 Hz and source has inductance of 1.5 mH per phase. The fundamental input power factor is lag. (Give the answer upto three decimal places).

In a single phase full bridge, voltage source inverter, the total harmonic distortion is (Assume output voltage as a square wave).

In the dc-dc converter circuit shown, switch Q is switched at a frequency at 10 kHz with a duty ratio of 0.6. All components of the circuit are ideal, and the initial current in the inductor is zero. What will be the value of ‘i’ when t = 160 μs

A thyristor is triggered by a gate pulse train of 5 kHz. The duty ratio of pulse is 0.8 and average power is 100 W then the maximum power at gate is

Meaning of the word DENOUNCE is