Electrical Engineering · Question Bank

Magnetic Circuits

56 of 84 questions match · page 1 of 3. Answer in your head first, then check the solution.

Study the lessons
TypeAll 78Problem solving 22Objective 56
DifficultyAll 56Easy 56MediumHard
✕ Clear filters
#1📜 EE Pre-Board August 2012📘 PowerhouseEasy
The unit of retentivity is
AAmpere turn
Bampere turn/weber
Campere turn/meter
Ddimensionless
#2📜 EE Pre-Board August 2012📘 PowerhouseEasy
The ratio of the total flux to useful flux is called _.
AMutual flux
BFlux Factor
CLeakage Factor
DMagnetic Factor
#3📜 EE Pre-Board August 2012📘 PowerhouseEasy
The process by which metallic parts are demagnetized is called
Adegreasing
Bdegaussing
Cdegrading
Ddemagnetizing
#4📜 EE Pre-Board August 2012📘 PowerhouseEasy
The area of hysteresis loop is the measure of
Apermittivity
Bpermeance
Cenergy loss per cycle
Dmagnetic flux
#5📜 EE Pre-Board August 2012📘 PowerhouseEasy
The greater percentage of materials are _ .
ADiamagnetic
BParamagnetic
CFerromagnetic
DNon- magnetic
#6📜 EE Pre-Board August 2012📘 PowerhouseEasy
One ampere-turn is equivalent to _ gilberts.
A1.16
B1.26
C1.36
D1.46
#7📜 EE Pre-Board March 2013📘 PowerhouseEasy
Which of the following is a vector quantity?
AMagnetic Flux
BMagnetic flux density
CMagnetic reluctance
DMagnetic field intensity
#8📜 EE Pre-Board March 2013📘 PowerhouseEasy
A magnetic field exists around
ACopper
BIron
CMoving charges
DAluminum
#9📜 EE Pre-Board March 2013📘 PowerhouseEasy
Ten oersted is equivalent to
A10 Gb/m
B1 Gb/m
C10 Gb/cm
D100 Gb/cm
#10📜 EE Pre-Board March 2013📘 PowerhouseEasy
Permeance is analogous to
AConductance
BResistance
CReluctance
DInductance
#11📜 EE Pre-Board March 2014📘 PowerhouseEasy
What is the counterpart of magnetic flux in an electric circuit?
Avoltage
Bcurrent
Cresistance
Dconductance
#12📜 EE Pre-Board August 2014📘 PowerhouseEasy
When the relative permeability of a material is slightly less than 1, it is called_____ material.
Anon-magnetic
Bparamagnetic
Cferromagnetic
Ddiamagnetic
#13📜 EE Pre-Board August 2014📘 PowerhouseEasy
A magnetic field exist around
Acopper
Bmoving charges
Ciron
Daluminum
#14📜 EE Pre-Board August 2014📘 PowerhouseEasy
A material commonly used for shielding or screening magnetism is
Abrass
Baluminum
Ccopper
Dsoft iron
#15📜 EE Pre-Board March 2015📘 PowerhouseEasy
In the Fleming’s left hand rule, thumb always represents
Avoltage
Bcurrent
Cdirection of force on conductor
Dmagnetic field
#16📜 EE Pre-Board August 2015📘 PowerhouseEasy
All magnetic fields originates from
AMoving electric charges
BIron atoms
Cmagnetic domain
Dpermanent magnets
#17📜 EE Pre-Board March 2016📘 PowerhouseEasy
The permeability of a material means
AStrength of permanent magnet
BStrength of an electromagnet
CThe magnetization left in the iron after exciting field has been removed.
DThe conductivity of a material for magnetic lines of force
#18📜 EE Pre-Board March 2017📘 PowerhouseEasy
What determines the direction of force in a conductor?
ALenz law
BFaraday’s law
CLeft hand rule
DRight hand rule
#19📜 EE Pre-Board August 2017📘 PowerhouseEasy
It is difficult to magnetize steel because of its
Ahigh permeability
Bhigh conductivity
Clow permeability
Dlow retentivity
#20📜 EE Pre-Board August 2017📘 PowerhouseEasy
The reciprocal of permeability is
Areluctance
Bpermittivity
Creluctivity
Dconductivity

More Electrical Engineering topics