MCQs: The unit of electrical energy is / are
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MCQs: If a number of resistors are connected in parallel, then the reciprocal of total resistance is equal to
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MCQs: Permeability of a material is
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MCQs: The amount of flux density set up in the core is dependent upon
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MCQs: When a solenoid attracts an iron bar,
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MCQs: If two conductors carrying currents in opposite direction are placed parallel to each other then the magnetic field set up by the conductors
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MCQs: According to the End Rule, the current directions when looked from one end of the coil if that end is South Pole and if the end is North Pole are
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MCQs: When the flux crosses the air gap, it bulges outward at the ends of the air gap and the flux density in the air gap is reduced. This is known as
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MCQs: The induced emf sets up the direction of current in such a way that the magnetic field produced by it
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MCQs: Which among the following sentences is correct?
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MCQs: If the magnetic field is stationary and the conductor is in motion then the emf induced is called
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MCQs: “ Total electric flux through any closed surface is equal to the charge enclosed by that surface ”. This is
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MCQs: Gauss’s law is applicable for
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MCQs: The potential difference between two points is given by
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MCQs: For forming an electric dipole between two point charges separated by a small distance, the two point charges are of
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MCQs: The amount of work done in moving a charge from one point to another along an equipotential line or surface charge is
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MCQs: A vector quantity has
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MCQs: If the number of turns, area and current of an ac circuit is doubled then the new inductance will be
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MCQs: When an ac power is applied to a reactive load, then the voltage is
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MCQs: If the number of conductors and speed of a lap wound generator is doubled then the generated emf will be
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