SSC JE Electrical 2019 with solution SET-1 Identify the machine shown in the circuit DC short shunt compound motor DC shunt motor DC short shunt compound generator DC long shunt compound generator DC short shunt compound motor DC shunt motor DC short shunt compound generator DC long shunt compound generator ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 If an alternator is operating at unity power factor, then its terminal voltage is Less than the induced EMF, with negative regulation Greater than the induced EMF, with negative voltage regulation Equal to the induced EMF, with zero voltage regulation Less than the induced EMF, with positive voltage regulation Less than the induced EMF, with negative regulation Greater than the induced EMF, with negative voltage regulation Equal to the induced EMF, with zero voltage regulation Less than the induced EMF, with positive voltage regulation ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 If N = linkage flux, then the linkage flux per unit current is defined as: Leakage coefficient Inductive reactance Magnetomotive force Inductance Leakage coefficient Inductive reactance Magnetomotive force Inductance 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 A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil 2.5 mH 0.125 mH 0.25 mH 1.25 mH 2.5 mH 0.125 mH 0.25 mH 1.25 mH ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The inductance of the coil is given by the relationL = Nφ/IWhereN = number of turns = 50φ = flux = 200μWbI = current = 8 AL = 50 × 200 × 10−6 ⁄ 8L = 1.25 mH
SSC JE Electrical 2019 with solution SET-1 Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10% 2.5Hz 25Hz 50Hz 5Hz 2.5Hz 25Hz 50Hz 5Hz ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given DataVoltage = 440 VFrequency = 50 HzSlip = 10% =0.1Now,Rotor frequency = slip × frequency= 0.1 × 50 = 5 Hz
SSC JE Electrical 2019 with solution SET-1 Which of the following lamps employs a bimetallic strip? Incandescent lamp Mercury vapor lamp Fluorescent lamp Sodium vapor lamp Incandescent lamp Mercury vapor lamp Fluorescent lamp Sodium vapor lamp ANSWER DOWNLOAD EXAMIANS APP
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