The lagging effect between flux density of the material and the magne
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The total number of magnetic lines of force in a magnetic field is called
If the distance between two magnetic poles decreases by 2 timesa the force between them
Which of the following is a paramagnetic material?
If the number of valence electrons of an atom is more than 4a the substance is called
What is used as the dielectric material in high voltage transformers?
One coulomb of charge consists of ________ electrons.
Electromotive force in a circuit
The magnetic field of a bar magnet most closely resembles the magnetic field of
An alloy of 40 percent iron and 60 percent nickel.
A theorem which states that an electric current flowing in a circuit produces a magnetic field at external…
The temperature coefficient of resistance of eureka is
The unit of flux is _____ in cgs system.
The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
What is the diameter of an atom?
A test charge means a charge of
The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages.…
Defined as a closed path in which magnetic induction or flux flows
Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
The phenomenon by which a subtracts pieces of iron
The hot resistance of an incandescent lamp is about _______ its cold resistance.
Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
Hydrogen is an example of a _____ material.
Refers to the magnetic lines
Which of the following is used by permanent magnets as the magnetic material?
The emf induced in a coil due to the change of its own flux linked with it is called
Ohm's law cannot be applied to which material?
The energy stored in an electrostatic field or electromagnetic field is called
The temperature coefficient of resistance of insulators is
Hipernik is an alloy containing __________ iron and __________ nickel.
At/m is a unit of
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