SSC JE Electrical 2019 with solution SET-2
The work done on or by a unit N-pole in moving once around a closed path is equal to

The product of flux and number of turns enclosed by that path
Magnetic flux density
The product of current and number of turns enclosed by that path
Reluctance

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SSC JE Electrical 2019 with solution SET-2
If a circular conductor carries a current of ‘I’ ampere having radius ‘r’ meter, then the magnetizing force at the center of the coil is given by

(1/2r)*(At/m)
(1/r)*(At/Wb)
(1/r)*(At/m)
(1/4r)*(At/m)

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SSC JE Electrical 2019 with solution SET-2
A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

5/2π
10/2π
20/2π
1/2 π

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SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

Cumulative compound motor
DC Series Motor
Differential compound motor
DC shunt motor

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