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

Stroboscopic effect
Hopkinson’s effect
Fringing effect
Hall effect

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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
0.015 H
1.5 H
0.15 H

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SSC JE Electrical 2019 with solution SET-2
The type of damping used for moving iron instruments is

Fluid friction damping
Air friction damping
Eddy current damping
Gravity friction damping

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SSC JE Electrical 2019 with solution SET-2
The names of the four materials have been given, select the one which has the least resistivity at 20°C?

Iron
Nichrome
Glass
Silver

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SSC JE Electrical 2019 with solution SET-2
While estimating domestic wiring cost, if the length of the PVC conduit required is 62 meters, then what is the length of the cable required?

100 meters
124 meters
62 meters
186 meters

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