Which of the following materials has permeability slightly less than that of free space?
Correct Answer :
Download Objective type questions of
Visit our PDF store
Get all objective type questions of Electricity Fundamentals MCQ
comments powered by Disqus.
The total number of magnetic lines of force in a magnetic field is called
What is used as the dielectric material in high voltage transformers?
Lenz' law states that the direction of the induced emf and hence current
The magnetic materials should have a large hysteresis loss for one of the following applications.
All matters (gasa liquid and solid) are composed of
The force between two magnetic poles varies with the distance between them. The variation is ______…
One oersted (Oe) is equivalent to _____ Gb/cm.
Who discovered that a current-carrying conductor would move when placed in a magnetic field?
Which of the following is a paramagnetic material?
The core of a transformer heats up when its primary is fed from an ac source because of
A magnetic material losses its ferromagnetic properties at a point called
A 200-watt lamp working for 24 hours will consume approximately _____ units.
When the relative permeability of a material is slightly more than 1a it is called ______ material.
A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
What is the usual value of leakage coefficient for electrical machines?
Temporary magnets are commonly employed in
Magnetic field intensity is a ________ quantity.
The temperature coefficient of resistance of conductors is
As the magnetic intensity decreasesa the relative permeability of a magnetic material
A principle that states that only two electrons with different spins are allowed to exist in a given…
The property of a material which opposes the creation of magnetic flux in it
Magnetic intensity is a
How is mutual inductance between two coils decreased?
Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
The electric flux density is a ________ quantity.
Which of the following electric quantities is vector in character?
What is the cgs unit of magnetomotive force?
One weber of flux is equal to _______ magnetic lines of force.
The emf induced in a coil due to the change of its own flux linked with it is called
Join our Chat Group
Join our Twitter Group
Join our Pinterest Group
Join our Facebook Group
Subscribe to our Email Newsletter