1
GATE EE 2001
MCQ (Single Correct Answer)
+1
-0.3
The minimum number of wattmeter(s) required to measure 3 $$-$$ phase, 3 $$-$$ wire balanced or unbalanced power is
A
1
B
2
C
3
D
4
2
GATE EE 1999
MCQ (Single Correct Answer)
+1
-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
A
current coil are not in phase
B
current coil are not in quadrature
C
pressures coil are not in phase
D
pressure coil are not in quadrature.
3
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
A dynamometer type wattmeter responds to the
A
average value of active power
B
average value of reactive power
C
peak value of active power
D
peak value of reactive power
4
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
The moving coil in a dynamometer wattmeter is connected
A
in series with the fixed coil
B
across the supply
C
in series with the load
D
across the load
GATE EE Subjects
EXAM MAP