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?

Free running
Coasting
Notching up
Braking

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SSC JE Electrical 2019 with solution SET-2
The number of brushes required for a 4 pole, lap wound DC machine is

2
4
8
1

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SSC JE Electrical 2019 with solution SET-2
The conductor tied between two supports takes the shape of a ‘catenary’ due to ____?

Corona
Earthing
Sag
Transposition

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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?

1/2 π
5/2π
10/2π
20/2π

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SSC JE Electrical 2019 with solution SET-2
Four relations are given below. Identify the correct relation regarding a transistor?

IE ÷ IC = IB
IE > IC < IB
IE < IC > IB
IE > IC > IB

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