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1
GATE EE 2000
MCQ (Single Correct Answer)
+2
-0.6
The two wattmeter method is used to measure active power on a three phase, three wire system. If the phase voltage is unbalanced, then the power reading is
A
affected by both negative sequence and zero sequence voltages
B
affected by negative sequence voltages but not by zero sequence voltages
C
affected by zero sequence voltages but not by negative sequence voltages
D
not affected by negative or zero sequence voltages
2
GATE EE 1999
MCQ (Single Correct Answer)
+2
-0.6
The voltage phasor of a circuit is $$10\angle {15^ \circ }V$$ and the current phasor is $$2\angle - {45^ \circ }A.$$ The active and the reactive powers in the circuit are
A
$$10$$ $$W$$ and $$17.32$$ $$V$$ Ar.
B
$$5$$ $$W$$ and $$8.66$$ $$V$$ Ar.
C
$$20$$ $$W$$ and $$60$$ $$V$$ Ar.
D
$$20\sqrt 2 $$ and $$10\sqrt 2 V$$ Ar.
3
GATE EE 1997
Fill in the Blanks
+2
-0
For the circuit shown in Fig, the wattmeter reading will be .... W and the power dissipted in the load is ......W GATE EE 1997 Electrical and Electronics Measurement - Measurement of Energy and Power Question 2 English
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