SSC JE Electrical 2019 with solution SET-1
 A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

200 V
210 V
215 V
190 V

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SSC JE Electrical 2019 with solution SET-1
Reflected Light/Incident Light =

Reflection factor
Maintenance factor
Waste light factor
Absorption factor

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SSC JE Electrical 2019 with solution SET-1
A three-phase induction machine, when it is operating like a motor, the range of slip is given by

1 < a < 2
0 > s > −1
−1 > s > −2
0 ≤ s ≤ 1

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SSC JE Electrical 2019 with solution SET-1
 Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

0.4 mWb
0.004 mWb
4 mWb
0.04 mWb

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = ωT
Pmech = (2πωT)/60
Pmech = (ωT)/60
Pmech = (2πωT)

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