• 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 circuit element stores energy in the electromagnetic field?

Variable resistor
Resistance
Inductance
Condenser

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is

100 ohms
1000 ohms
5000 ohms
500 ohms

ANSWER DOWNLOAD EXAMIANS APP

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

Iron core
Air core
Laminated iron core
Powdered iron core

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be

Halved
Doubled
Quadrupled
Unaffected

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is

36 mH
18 mH
6 mH
12 mH

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic induction
An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be

12 A/s
16 A/s
4 A/s
20 A/s

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
↑