GATE EE 2001 | Measurement of Energy and Power Question 22 | Electrical and Electronics Measurement

GATE EE 2001

MCQ (Single Correct Answer)

-0.3

The minimum number of wattmeter(s) required to measure 3 $$-$$ phase, 3 $$-$$ wire balanced or unbalanced power is

GATE EE 1999

MCQ (Single Correct Answer)

-0.3

Electro dynamic type watt meters have large errors while measuring power in a.c circuits at low power factor conditions, since the voltage across and the current though the

current coil are not in phase

current coil are not in quadrature

pressures coil are not in phase

pressure coil are not in quadrature.

GATE EE 1997

MCQ (Single Correct Answer)

-0.3

A dynamometer type wattmeter responds to the

average value of active power

average value of reactive power

peak value of active power

peak value of reactive power

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

The moving coil in a dynamometer wattmeter is connected

in series with the fixed coil

across the supply

in series with the load

across the load

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