1
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
A current of $$ - 8 + 6\sqrt 2 \left( {\sin \,\omega t + {{30}^0}} \right)\,\,A$$ is passed though three meters. They are a center zero $$PMMC$$ meter, true $$r.m.s$$ meter and moving $${\rm I}$$ron instrument. The respective reading (in $$A$$) will be
A
$$8, 6, 10$$
B
$$8, 6, 8$$
C
$$-8, 10, 10$$
D
$$-8, 2, 2$$
2
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
$${R_1}$$ and $${R_2}$$ are the opposite arms of $${R_3}$$ and $${R_4}$$ of a wheat stone bridge. The source voltage is applied across $${R_1}$$ and $${R_3}$$ under balanced conditions, which one of the following is true?
A
$${R_1} = {{{R_3}{R_4}} \over {{R_2}}}$$
B
$${R_1} = {{{R_2}{R_3}} \over {{R_4}}}$$
C
$${R_1} = {{{R_2}{R_4}} \over {{R_3}}}$$
D
$${R_1} = {R_2} + {R_3} + {R_4}$$
3
GATE EE 2006
MCQ (Single Correct Answer)
+1
-0.3
A sampling wattmeter (that computes power from simultaneously sampled values of voltage and current) is used to measure the average power of a load. The peak to peak voltage of the square wave is $$10V$$ and the current is triangular wave of $$5A$$ $$p$$-$$p$$ as shown in the figure. The period is $$20$$$$ms$$. The reading in $$W$$ will be GATE EE 2006 Electrical and Electronics Measurement - Measurement of Energy and Power Question 24 English
A
$$0W$$
B
$$25W$$
C
$$50W$$
D
$$100W$$
4
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
An energy meter connected to an immersion heater (resistive) operating on an $$AC$$ $$230V,$$ $$50$$ $$Hz,$$ $$AC$$ single phase source reads $$2.3$$ units ($$kWh$$) in $$1$$ hour. The heater is removed from the supply and now connected to a $$4000$$ $$V$$ peak to peak square wave source of $$150$$ $$Hz.$$ The power in $$kW$$ dessipated by the heater will be
A
$$3.478$$
B
$$1.739$$
C
$$1.540$$
D
$$0.870$$
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