SSC JE Electrical 2019 with solution SET-1 Identify the machine shown in the circuit DC short shunt compound generator DC shunt motor DC short shunt compound motor DC long shunt compound generator DC short shunt compound generator DC shunt motor DC short shunt compound motor DC long shunt compound generator 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 10 H 6 H 2.4 H 4 H 10 H 6 H 2.4 H 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 Relate ‘Reluctance with the following: Weber/A Weber/m A/m A-T/Weber Weber/A Weber/m A/m A-T/Weber ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The reluctance of any part of a magnetic circuit may be defined as the ratio of the drop in magnetomotive force to the flux produced in that part of the circuit. It is measured in ampere-turns/Weber and is denoted by S.Reluctance = m.m.f ⁄ flux
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% 50Hz 2.5Hz 5Hz 25Hz 50Hz 2.5Hz 5Hz 25Hz 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 Identify the important feature of a DC series motor Zero starting torque Low starting torque Medium starting torque High starting torque Zero starting torque Low starting torque Medium 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.
SSC JE Electrical 2019 with solution SET-1 Find the net capacitance of the combination in which ten capacitors of 10 μF are connected in parallel 1 μF 0.1 μF 50 μF 100 μF 1 μF 0.1 μF 50 μF 100 μF ANSWER EXPLANATION DOWNLOAD EXAMIANS APP When the capacitance is connected in series the total capacitance is given byCeq = C1 + C2 + C3………CNCeq = 10nCeq =10 × 10 = 100 μF
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