SSC JE Electrical 2018 with solution SET-1
 A 3-phase star connected system is supplied by a line voltage of 440 V. The value of the current is 50 A. What is the power (in kW) consumed by the system, if the current lags the voltage by 45 degrees?

8.95
26.94
47
24

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SSC JE Electrical 2018 with solution SET-1
 Scott connections are used for

Three Phase to Single Phase transformation
Single-phase to three-phase transformation
Three-phase to two-phase transformation
Any of the above

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SSC JE Electrical 2018 with solution SET-1
 Which one of the following statement is NOT true about PMMC type instruments?

The cost of PMMC instruments is high
These instruments are suitable for both AC and DC currents
PMMC type Instruments have uniformly divided scale
Stray magnetic errors are small in these types of instruments

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SSC JE Electrical 2018 with solution SET-1
 Which of the following is the CORRECT formula for permeance?

Fm/L
φ/Fm
I/H
B/H

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SSC JE Electrical 2018 with solution SET-1
 What is the value of current I4 (in A) for the given junction?

4
−6
−4
6

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