SSC JE Electrical 2019 with solution SET-1
 A single-phase circuit’s power factor can be measured with a/an

Combination of a voltmeter, ammeter, and wattmeter
Wattmeter alone
Combination of a voltmeter and ammeter
Energy meter alone

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M = (L1 − L2)/2
M = (L1 + L2)/2
M ≤ (L1L2)0.5
M > (L1L2)0.5

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SSC JE Electrical 2019 with solution SET-1
 In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

4
3
1
2

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SSC JE Electrical 2019 with solution SET-1
 Hysteresis loss is NOT a function of

The volume of a material
Steinmetz co-efficient of material
Ambient temperature
Frequency

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