• 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
Ohm’s law in point from field theory can be expressed as

 V = IR.
 J = E / σ.
 J = σE.
 R = ρ × ( l / A).

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The right hand rule for determining the direction of the induced EMF was introduced by

 Maxwell
 Faraday
 Lenz
 Fleming

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be

 200 V.
 1800 V.
 0 V.
 900 V.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is

 40π C.
 5 C.
 None of above.
 10 C.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Conductor is constant and field is varying then emf will be induced. This principle is called

None of these
 virtually induced emf.
 dynamically induced emf.
 static induced emf.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by

 Bo ω sinω t.
  abω Bo sinω t.
 ab Bo cosω t.
 Zero.

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
↑