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?

Glass
Silver
Nichrome
Iron

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SSC JE Electrical 2019 with solution SET-2
Both the main winding and auxiliary winding of a single-phase induction motor is placed on the ______?

Neither stator nor rotor
Rotor
Both stator and rotor
Stator

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SSC JE Electrical 2019 with solution SET-2
For a three-phase induction motor slip at No Load ÷  slip at Full Load

Always less than one
Always equal to one
Always equal to zero
Always less than one

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SSC JE Electrical 2019 with solution SET-2
During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

Coasting
Free running
Notching up
Braking

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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

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

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