Amorphous solid is also called
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What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring…
The electrons in the last orbit of an atom are called _______ electrons.
The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
The physical motion resulting from the forces of magnetic fields is called
A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
The net electrical charge in an isolated system remains constant. This is known as
What is the maximum number of electrons that can be accommodated in the last orbit of an atom?
A one cubic cm of copper has how many free electrons at room temperature?
The mass of proton is __________ the mass of an electron.
How many neutrons does a copper atom have?
The resistivity of a conductor ___________ with an increase in temperature.
If you hold the conductor with right hand so that the stretched thumb points in the direction of the…
The force between two magnetic poles varies with the distance between them. The variation is ______…
Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
Refers to the non- metallic materials that have the ferromagnetic properties of iron.
Hipernik is an alloy containing __________ iron and __________ nickel.
Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
What is the unit of reluctance?
A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
Magnetic field intensity is a ________ quantity.
A 200-watt lamp working for 24 hours will consume approximately _____ units.
A positively charged body has
The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
There are how many compounds available in nature?
How many electrons are needed in the valence orbit to give a material's stability?
Who discovered that a current-carrying conductor would move when placed in a magnetic field?
Referred to as the specific reluctance of a material
One of the common application of an air- cored choke.
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