SSC JE Electrical 2019 with solution SET-2
In the two-wattmeter method of three-phase power measurement of a balanced load, if the reading of one meter is −200W, then the power factor of the load is

Greater than 0.5
Less than 0.5
Equal to 0.5
Equal to zero

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SSC JE Electrical 2019 with solution SET-2
A series magnetic circuit will have

Same magnetic flux
Different magnetic flux
Two or more paths for magnetic flux
Total reluctance of a series circuit = difference of the reluctances in different parts of the circuit

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SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

Voltage lags current by 60°
Voltage leads current by 60°
Can’t be determined
Voltage and current are in phase

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SSC JE Electrical 2019 with solution SET-2
The impedance at resonance offered by a parallel resonant circuit is

Maximum given by L/CR
Minimum given by L/CR
Maximum given by I/CR
Minimum given by I/CR

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