SSC JE Electrical 2019 with solution SET-1 When the supply to the excitation fails, the synchronous generator acts like a/an Induction motor Synchronous generator Induction generator Synchronous motor Induction motor Synchronous generator Induction generator Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 The below symbol which is used in single line diagrams represents Power transformer Current transformer Circuit breaker Potential transformer Power transformer Current transformer Circuit breaker Potential transformer ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Find the mutual inductance between two ideally coupled coils of 2H and 8H 2 H 4 H 8 H 16 H 2 H 4 H 8 H 16 H ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Mutual inductance between the two coils is K = √L1.L2K = √2 × 8k = √16k = 4 H
SSC JE Electrical 2019 with solution SET-1 At f = _____R – L – C series circuit operates at unity power factor 1 ⁄ RLC 1/2π√LC 1 ⁄ LC 1/RC 1 ⁄ RLC 1/2π√LC 1 ⁄ LC 1/RC ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is 0.4 V −2.5 V −4 V −10 V 0.4 V −2.5 V −4 V −10 V ANSWER EXPLANATION DOWNLOAD EXAMIANS APP GivenInductance L = 2 HRate of change of current di/dt = 5 A/secSelf induced EMF = − (Rate of change of current × Inductance) = −L(di/dt)= −(5 × 2) = −10V
SSC JE Electrical 2019 with solution SET-1 ______ Opposes the change in circuit voltage Capacitance Inductance Resistance Inductive reactance Capacitance Inductance Resistance Inductive reactance ANSWER DOWNLOAD EXAMIANS APP
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