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Electrical Engineering

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Asked: March 17, 2022In: DC Machines

EMF induced in a coil rotating in a uniform magnetic field will be maximum when the

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100%(a) rate of cutting flux by the coil sides is minimum. ( 1 voter )
0%(b) rate of change of flux linkage is maximum. ( 0 voters )
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coilemfEMF induced in a coilEMF induced in a coil rotatingEMF induced in a coil rotating in a uniform magnetic fieldinducedmagnetic fielduniform magnetic field
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    Mukesh Pandit NCT# Chief Marketing Officer
    Added an answer on March 17, 2022 at 6:39 pm

    The answer is (b).

    The answer is (b).

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Asked: March 17, 2022In: DC Machines

For a P-pole machine, the relation between electrical and mechanical degrees is

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0%(a) θelec = P*θ/2 mech ( 0 voters )
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dc machineelation between electrical and mechanical degreeselectrical degreemachinemechanical degreepolepole machine
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    Added an answer on March 17, 2022 at 6:48 pm

    The answer is (a).

    The answer is (a).

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Asked: March 17, 2022In: DC Machines

A conductor is rotating within a magnetic field. At which of the positions do the peak voltage occur?

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2.44%(a) Anywhere. ( 1 voter )
4.88%(b) At 45° angels to the axis of the magnetic field. ( 2 voters )
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    Mukesh Pandit NCT# Chief Marketing Officer
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    The answer is (c).

    The answer is (c).

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Asked: January 30, 2022In: Electrical Engineering

For a graph with n nodes, every Tree has (n-1) branches.

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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
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    True

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Asked: January 30, 2022In: Electrical Engineering

A minus sign is required to be placed before the right-hand side of the expression for emf induced just to indicate the phenomenon explained by Lenz.

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    True

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Asked: January 30, 2022In: Electrical Engineering

Short circuits in alkaline cells do not reduce life.

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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
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    True

    True

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Asked: February 2, 2022In: Electrical Engineering

In gases, the flow of current is due to

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100%(a) electrons, positive ions and negative ions. ( 1 voter )
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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
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    Answer is (a).

    Answer is (a).

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Asked: February 2, 2022In: Electrical Engineering

If rated dc voltage is applied instead of ac to the primary of a transformer

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25%(a) there will be no secondary voltage. ( 1 voter )
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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
    Added an answer on February 2, 2022 at 9:53 pm

    Answer is (c).

    Answer is (c).

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Asked: February 4, 2022In: Electrical Engineering

PVC cables are usually used for

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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
    Added an answer on February 4, 2022 at 9:53 pm

    Answer is (d).

    Answer is (d).

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Asked: January 28, 2022In: Electrical Engineering

The reciprocal of resistivity of a material is called its conductivity.

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  1. Mukesh Pandit
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    Mukesh Pandit NCT# Chief Marketing Officer
    Added an answer on January 28, 2022 at 10:57 pm

    True. 

    True. 

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