• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Power Electronics

Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 60 mA.
  10 mA.
 23 mA.
 40 mA.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H.

 200 µs.
  100 µs.
 150 µs.
 300 µs.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Thyristor can be protected from over voltages by using

 snubber circuit.
  voltage clamping device.
 heat sink.
 fuse.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Which of the following is not a characteristic of UJT?

Peak-point voltage
Bilateral conduction
Negative resistance
Intrinsic stand off ratio

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Power transistor are type of

 BJTs.
  All of above.
 IGBTs.
 MOSFETs.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Example of a voltage clamping device

 snubber circuit.
 fast acting fuse.
 aluminium block.
  metal oxide varistor.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Power Electronics

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑