SSC JE Electrical 2019 with solution SET-2
A diode appears as in forward region of its characteristics?

A capacitor
An ON switch
A high resistor
An OFF switch

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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
0.015 H
0.125 H
0.15 H

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SSC JE Electrical 2019 with solution SET-2
In the salient pole of the phase synchronous machine, the rotor will have

Larger diameter, shorter axial length
Smaller diameter, larger axial length
Smaller diameter, smaller axial length
Larger diameter, larger axial length

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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?

Nichrome
Silver
Iron
Glass

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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

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

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