GATE EE 2021 : National Champion Quiz 5 (App update required to attempt this test)

If a diode is connected in anti-parallel with a thyristor, then

During the turn-off process of a thyristor, the current flow does not stop at the instant when the current reaches zeros but continues to flow to a peak value in the reverse direction. this is due to

The output voltage shown below is given to a MOSFET with a resistance of 1 Ω

If d=π/3, then the value of the power loss in MOSFET is

A 3-ϕ full converter bridge is connected to supply voltage of 230 V per phase and a frequency of 50 Hz. The source inductance is 4 mH and load current on dc side is constant at 20 A at 30ׄ° firing angle

The percentage voltage regulation due to source inductance is:

A 1 ϕ – Fully controlled bridge converter operates in continuous conduction mode from a 230 V, 50 Hz, 1 – ϕ supply with firing angle of a = 30^o. The load resistance and inductance are 15 Ω and 30 mH respectively.

The rms value of 5^th harmonic source current (in ampere) is__________.

A single phase full bridge voltage source inverter is feeding a RLC load with output voltage

Waveform as a square wave. If the reactance X_C>X_L then the output waveform will be

A parallel plate capacitor is charged to 100 µC at 200 V. If it is connected to another capacitor resulting in net charge of first capacitor is 25 × 10^-6C then the capacitor of the new capacitor is

A single-phase voltage source inverter is feeding a purely inductive load as shown in the figure. The inverter is operated at 50 Hz in 180° square wave mode. Assume that the load current does not have any dc component. the peak value of the inductor current i₀ (in A) will be

The velocity vector is given as . The divergence of this velocity vector at (1,1,1)