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

Magnetism and Electromagnetism

Magnetism and Electromagnetism
The relative permeability is less than unity is case of

Ferrits
Ferromagnetic material
Diamagnetic material
Paramagnetic material

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength?

2500 AT/m
250 AT/m
25 AT/m
0.25 AT/m

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
For a given wire-wound core, an increase in current through the coil

Causes no change in flux density
Decreases the flux density
Increases the flux density
Reverses the flux lines

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m?

4 AT
8 AT
10 AT
16 AT

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it?

200 At
100 At
300 At
150 At

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
Susceptibility is positive for

diamagnetic substances
ferromagnetic substances
non-magnetic substances
None of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Magnetism and Electromagnetism

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
↑