SSC JE Electrical 2019 with solution SET-2
In a suspension type insulator the voltage…..?

Across the top disc is minimum
Across the center disc is maximum
Across the center disc is minimum
Across the top disc is maximum

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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?

0.15 H
1.5 H
0.015 H
0.125 H

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SSC JE Electrical 2019 with solution SET-2
The flux while crossing air gap tends to bulge outwards, thereby increasing the effective area of the gap, this effect is known as

Fringing effect
Hall effect
Hopkinson’s effect
Stroboscopic effect

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