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

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SSC JE Electrical 2019 with solution SET-2
Which of the following lamps is used s a sign or an indicator lamp?

Incandescent lamp
Fluorescent lamp
Halogen lamp
Neon lamp

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SSC JE Electrical 2019 with solution SET-2
If a circular conductor carries a current of ‘I’ ampere having radius ‘r’ meter, then the magnetizing force at the center of the coil is given by

(1/4r)*(At/m)
(1/r)*(At/m)
(1/r)*(At/Wb)
(1/2r)*(At/m)

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SSC JE Electrical 2019 with solution SET-2
Permeance is analogous to an electrical circuit?

Conductance
Conductivity
Resistance
Permittivity

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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

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

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