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

Electromagnetic induction

Electromagnetic induction
Which of the following inductor will have the least eddy current losses?

Laminated iron core
Iron core
Powdered iron core
Air core

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
Higher the self-inductance of a coil,

Lower the e.m.f. induced
Lesser its weber-turns
Longer the delay in establishing steady current through it
Greater the flux produced by it

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage?

0.5 s
None of the listed here
0.2 s
0.1 s

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
Two 300 uH coils in series without mutual coupling have a total inductance of

600 uH
900 uH
300 uH
1200 uH

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is

350 mH
250 mH
3500 mH
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
If current in a conductor increases then according to Lenz's law self-induced voltage will

Aid the increasing current
Aid the applied voltage
Tend to decrease the amount of current
Produce current opposite to the increasing current

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electromagnetic induction

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
↑