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

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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:

2
3
1
4

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SSC JE Electrical 2019 with solution SET-1
 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

30Ω
20Ω
10Ω
40Ω

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SSC JE Electrical 2019 with solution SET-1
 For a three-layer stranded wire, the number of strands in the first, second, and third layer respectively are:

1, 4 and 8
1, 7 and 14
1, 6 and 12
1, 5 and 10

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