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UPPCL EE : Power electronics Quiz 1

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Question 1

Reverse recovery current of a power diode for a given forward current

Question 2

Match List-i (Type of Device) with List-ii (Characteristic / Application) and select the correct answer using the code given below the Lists:

Codes:
A - B - C - D

Question 3

Identify the incorrect statement about MOSFET.

Question 4

To ensure firing of SCR, R_max is _____Ω, if latching current = 50 mA . Minimum width of gate pulse = 50 μsec.

Question 5

If the 4-cycle current surge rating an SCR is 20 A then the surge current that the SCR can withstand for one cycle is:

Question 6

Which of the following statements is not correct about GTO?

Question 7

Choose the correct option:

Switches that can handle reverse current is/are:

Question 8

Choose the correct statement related to power BJT

S₁ : It is majority carrier Device

S₂ : In BJT, Base- Emitter region acts as a P-N Diode

Question 9

Which one among the following is not a fully controlled device?

Question 10

For 2-unit SCR string efficiency is 90% and adding 1 more unit reduce efficiency to 70%. Its reliability will

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Nov 23AE & JE Exams