• 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 Field Theory

Electromagnetic Field Theory
Which of the following represents ohms law

 V = RI
All of these
 J = σE
 I = GV

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Which of the following impedance inversion is obtained?

Balun transformer
A half wave line
A quarter wave line
Short-circuited stub

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)

 QR.
 Q√(R2 + d2).
 QR2/d.
  QD.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

 Qr/(4 π εo R3).
 3 Qr/(4 π εo R3).
 Q/(4 π εo r3).
 QR/(4π εo r3).

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
In above problem the induced emf will be reduced to half if the conductor moves an angle of

  30° to the direction of field.
  45° to the direction of field.
  60° to the direction of field.
  75° to the direction of field.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

  113.04 μH.
 1.1304 μH.
 37.68 μH.
 3.768 μH.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electromagnetic Field Theory

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
↑