Related Questions
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Defined as the number of lines per unit area through any substance in a plane at right angles to the lines of force
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The magnetic field around the conductor is determined by the
C. Current divided by the resistance
D. Resistance divided by the current
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The K shell or the first shell has how many permissible number of orbiting electrons?
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Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field intensity is
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The electric flux density is a ________ quantity.
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The B-H curve of ________ is not a straight line.
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What is used as the insulating material or dielectric in an electric ion
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The force between two magnetic poles varies with the distance between them. The variation is ______ to the square of that distance.
D. Inversely proportional
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When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor when the conductor is at an angle of _______ to the magnetic field.
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The magnetic field of a magnetized iron bar when strongly heated
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Magnetic intensity is a
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Who developed the electromagnetic theory of light in 1862?
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A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
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The temperature coefficient of resistance of eureka is
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The tiniest element of matter
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If the length and area of cross-section of a wire are doubleda then its resistance
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The emf induced in a coil due to the changing current of another neighboring coil is called
C. Statically induced emf
D. Dynamically induced emf
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Ohm's law can be used only to a _____ circuit or component.
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The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole is called
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When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
A. Statically induced emf
D. Dynamically induced emf
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A 6- V battery is connected across a solenoid of 100 turns having a resistance of 2 ?a Calculate the number of ampere turns?
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The branch of Engineering which deals with the magnetic effect of electric current is known as
C. Electrical engineering
D. Electronics engineering
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The current of electric circuit is analogous to which quantity of a m
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The temperature coefficient of resistance of semiconductors is
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The uncharged particles which have no effect on its atomic charge.
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It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
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A commercial alloy of aluminum nickela and iron with cobalta copper and titanium added to produce about 12 grades.
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The straight line passing through the two poles of magnet is called
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Temporary magnets are commonly employed in
C. moving coils loudspeakers
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The quantity 10^6 maxwells is equivalent to one