SSC JE Electrical 2019 with solution SET-1
 In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

Voltage lags current by 45°
Voltage and current are in phase with each other
Voltage leads current by 45°
Voltage lags current by 30°

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SSC JE Electrical 2019 with solution SET-1
 Identify the INCORRECT statement with regards to synchronous motors

The field winding is placed on the rotor
It is a self-starting machine
It is a constant speed motor
The armature winding is placed on the stator

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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:

0.004 mWb
0.4 mWb
0.04 mWb
4 mWb

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

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