SSC JE Electrical 2019 with solution SET-1 In the speed-time curve of a train, speed in and time are plotted km/h; hour km/h; sec km/s; sec km/s; hour km/h; hour km/h; sec km/s; sec km/s; hour ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Extension of moving iron ammeter range can be done by using Shunt Capacitor Multiplier Inductor Shunt Capacitor Multiplier Inductor ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Two inductors of 4H and 6H are connected in series. The equivalent inductance of this combination is 6 H 10 H 4 H 2.4 H 6 H 10 H 4 H 2.4 H ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total inductance when inductor are connected in seriesL = L1 + L2L = 4 + 6 =10H
SSC JE Electrical 2019 with solution SET-1 If N = linkage flux, then the linkage flux per unit current is defined as: Inductance Inductive reactance Leakage coefficient Magnetomotive force Inductance Inductive reactance Leakage coefficient Magnetomotive force ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The inductance L of this coil is defined as the flux linkage per unit current and its unit is Henry.L =Λ/IWhereΛ = Flux linkageI = current
SSC JE Electrical 2019 with solution SET-1 Identify the INCORRECT statement with regards to synchronous motors It is a constant speed motor The armature winding is placed on the stator 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 The field winding is placed on the rotor It is a self-starting machine ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A synchronous motor is not a self-starting motor. You can check out this article why synchronous motor is not self starting
SSC JE Electrical 2019 with solution SET-1 Identify the important feature of a DC series motor Zero starting torque Medium starting torque Low starting torque High starting torque Zero starting torque Medium starting torque Low starting torque High starting torque ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In DC series motor Torque (Ta) increase as the Square of armature current (Ia) Ta ∝ Ia2. So DC motor provides high starting torque.
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