Saturday , February 16 2019

MCQ on Electrostatics

1) Which of the following is a vector quantity electrical potential electrical field intensity electric charge none of the above 2) The unit of field intensity is coulomb coulomb/m2 webber newton/coulomb 3) Coulomb’s law for the force between electric charges most closely resembles with newton law of motion law of …

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MCQ on DC Motor

1) Brushes of DC Motors are made of carbon soft carbon hard carbon aluminium 2) Armature reaction of an unsaturated DC machine is crossmagnetising demagnetizing magnetizing none of the above 3) Eddy current are induced in the pole shoes of a DC machine due to oscillating magnetic field pulsating magnetic flux …

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