SSC JE Electrical 2019 with solution SET-2
The total number of possible phase sequences for a three-phase AC system is ____

0
2
3
1

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SSC JE Electrical 2019 with solution SET-2
The impedance at resonance offered by a parallel resonant circuit is

Maximum given by I/CR
Minimum given by L/CR
Maximum given by L/CR
Minimum given by I/CR

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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
1/2 π
20/2π

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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?

0.125 H
0.15 H
1.5 H
0.015 H

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