SSC JE Electrical 2019 with solution SET-1 An electric motor in which both the rotor and stator fields rotate with the same speed is called Induction motor Universal motor DC motor Synchronous motor Induction motor Universal motor DC motor Synchronous motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In the synchronous motor, the stator and rotor rotate at the same speed.
SSC JE Electrical 2019 with solution SET-1 A single-phase circuit’s power factor can be measured with a/an Energy meter alone Wattmeter alone Combination of a voltmeter, ammeter, and wattmeter Combination of a voltmeter and ammeter Energy meter alone Wattmeter alone Combination of a voltmeter, ammeter, and wattmeter Combination of a voltmeter and ammeter ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 ______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor Auto-transformer Direct-on-line Rotor-resistance Star-delta Auto-transformer Direct-on-line Rotor-resistance Star-delta ANSWER DOWNLOAD EXAMIANS APP
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 1.25 mH 2.5 mH 0.125 mH 0.25 mH 1.25 mH 2.5 mH 0.125 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 When the supply to the excitation fails, the synchronous generator acts like a/an Induction motor Induction generator Synchronous generator Synchronous motor Induction motor Induction generator Synchronous generator Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 The direction of the arrow represents the direction of when the diode is forward biased P-type material N-type material Conventional current flow P-N Junction P-type material N-type material Conventional current flow P-N Junction ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The direction of the arrow represents the direction of the conventional current flow when the diode is forward biased.
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