SSC JE Electrical 2019 with solution SET-1
 A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

0.25 mH
2.5 mH
1.25 mH
0.125 mH

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SSC JE Electrical 2019 with solution SET-1
 What is the reason behind using a centrifugal switch in a single-phase induction motor?

To improve the starting performance of the motor
To out in the capacitor during running conditions
To protect the motor from overloading
To cut-off the starting winding at an appropriate instant

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

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SSC JE Electrical 2019 with solution SET-1
 H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

(μI ⁄ 2Πr) A/m
(I ⁄ 2Πr) A/m
(μI ⁄ 2r) A/m
(I ⁄ 2r) A/m

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