• 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
Which of following devices has highest di/dt and dv/dt capability?

 SITH.
 SIT.
  GTO.
 SCR.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
What is used to protect the SCR from over current ?

 Snubber circuit.
 Heat sink.
  CB and fuse.
 Voltage clamping device.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
What may happen high dV / dt?

 Anyone of these.
  Both A and B.
 Unwanted turn ON.
 Breakdown of J2 junction.

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.

 150 µs.
 200 µs.
 300 µs.
  100 µs.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
A power MOSFET has three terminals called

  Drain, source and gate.
 Drain, source and base.
 Collector, emitter and base.
 Collector, emitter and gate.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Materials used in heat sink should have

 large surface area.
  All of these.
 high thermal conductivity.
 high melting point.

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
↑