• 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
If the anode current is 800 A, then the amount of current required to turn off the GTO is about

 20 A.
  200 A.
 600 A.
 400 A.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ?

 CB.
 Voltage clamping device.
  Fast acting current limiting device (FACL fuse).
 Snubber circuit.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________

Is increased
None of these
Is decreased
Remains the same

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
Which triggering is the most reliable?

  Forward voltage triggering.
  Gate triggering.
  Thermal triggering.
  dV / dt triggering.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be

 4242.64 A.
 2121.32 A.
 1500 A.
 6000 A.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is

  135 μs.
 145 μs.
 130 μs.
 140 μs.

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
↑