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

A capacitor
An OFF switch
A high resistor
An ON switch

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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?

10/2π
1/2 π
5/2π
20/2π

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SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

Voltage and current are in phase
Voltage leads current by 60°
Can’t be determined
Voltage lags current by 60°

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SSC JE Electrical 2019 with solution SET-2
Four relations have been given. Select the correct relation?

MMF = Flux/Reluctance
MMF = Flux/Permeance
MMF = Flux/Reluctance
Flux = MMF/Permeance.

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