Year 2024

Week # 4 Quiz 2

Q1. A single phase AC regulator fed from 50 Hz system supplies a load having resistance and inductance of 4.0 Ω and 12.73 mH, respectively. The control range of firing angle is

Q2. An AC voltage controller has a pure resistive load of \(10\:\Omega\) and input voltage is 150 V(RMS), 50 Hz. The thyristor switch is ON for 25 cycles and OFF for 75 cycles. Determine the RMS output voltage and input power factor.

Q3. A voltage source inverter is used for which of the following application?

Q4. The MOSFET switch in its on-state may be considered equivalent to

Q5. For continuous conduction in a single phase semiconverter, each SCR conducts for___________.

Q6. Which of the following exhibits negative resistance in a portion of its characteristic?

Q7. A triac is a:

Q8. Creeping in a single phase energy meter may be due to

Q9. In PMMC instruments the scale is

Q10. The most efficient form of damping employed in electrical instruments is