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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1
 With the current direction marked in the circuit shown, the net voltage applied is

−(V2 − V1)
(V2 − V1)
V2
V1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Net voltage = −V2 + V1
Net voltage = −(V2 − V1)
 

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given
Inductance L = 2 H
Rate of change of current di/dt = 5 A/sec
Self induced EMF = − (Rate of change of current × Inductance) = −L(di/dt)
= −(5 × 2) = −10V
 

SSC JE Electrical 2019 with solution SET-1
 Which of the following losses is together called iron losses?

Eddy current loss and frictional loss
Hysteresis loss and frictional loss
Eddy current loss and hysteresis loss
Hysteresis loss and copper loss

ANSWER DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-1
 The voltmeter is shown in the circuit reads:

24 V
2.4 V
1.2 V
12 V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Total resistance in the given circuit
R = (250 + 250)MΩ = 500 MΩ
Current I = V/R = 24/(500 × 103)
Now the Voltage in the voltmeter
= \dfrac{{24}}{{500 \times {{10}^3}}} \times 250 \times {10^3}
V = 12 V
 

SSC JE Electrical 2019 with solution SET-1
 The ratio of average energy demand to maximum demand during a specific period in

Load factor
Utilization factor
Power factor
Form factor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The ratio of average energy demand to maximum demand during a specific period is called the load factor.
Load Factor = Average Load/Maximum Demand
 

SSC JE Electrical 2019 with solution SET-1
 The direction of the arrow represents the direction of when the diode is forward biased

Conventional current flow
N-type material
P-N Junction
P-type material

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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