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?

1/2 π
20/2π
10/2π
5/2π

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SSC JE Electrical 2019 with solution SET-2
Creeping is a term related to instruments?

Induction type
Moving iron type
PMMC type
Dynamometer type

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

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SSC JE Electrical 2019 with solution SET-2
In the two-wattmeter method of three-phase power measurement of a balanced load, if the reading of one meter is −200W, then the power factor of the load is

Equal to zero
Less than 0.5
Greater than 0.5
Equal to 0.5

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SSC JE Electrical 2019 with solution SET-2
The combined inductance of two coils connected in a series is 0.6H and 0.1H, depending on the relative directions of the currents to the coils. If one of the coils when isolated has a self-inductance of 0.2 H, then calculate the natural inductance?

1.5 H
0.15 H
0.125 H
0.015 H

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