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 50 μF 100 μF 0.1 μF 1 μF 50 μF 100 μF 0.1 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
SSC JE Electrical 2019 with solution SET-1 The annual load factor of a generation station is equal to (No. of units actually supplied per year) ⁄ (Max. possible demand) (No. of units actually supplied per year) ⁄ (Max. possible demand × 8760) (No. of units actually supplied per month) ⁄ (Max. possible demand × 8760) (No. of units actually supplied per year) ⁄ (Max. possible demand) (No. of units actually supplied per year) ⁄ (Max. possible demand) (No. of units actually supplied per year) ⁄ (Max. possible demand × 8760) (No. of units actually supplied per month) ⁄ (Max. possible demand × 8760) (No. of units actually supplied per year) ⁄ (Max. possible demand) 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 −10 V −2.5 V −4 V 0.4 V −10 V −2.5 V −4 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 Identify the INCORRECT statement with regards to synchronous motors It is a constant speed motor It is a self-starting machine The armature winding is placed on the stator The field winding is placed on the rotor It is a constant speed motor It is a self-starting machine The armature winding is placed on the stator The field winding is placed on the rotor 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 The below symbol which is used in single line diagrams represents Current transformer Circuit breaker Potential transformer Power transformer Current transformer Circuit breaker Potential transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
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 Universal motor DC motor Synchronous motor Induction motor Universal motor DC motor Synchronous motor Induction motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In the synchronous motor, the stator and rotor rotate at the same speed.
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