1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The phase difference between the alternating current and $$emf$$ is $${\pi \over 2}.$$ Which of the following cannot be the constituent of the circuit?
A
$$R,L$$
B
$$C$$ alone
C
$$L$$ alone
D
$$L, C$$
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
A circuit has a resistance of $$12$$ $$ohm$$ and an impedance of $$15$$ $$ohm$$. The power factor of the circuit will be
A
$$0.4$$
B
$$0.8$$
C
$$0.125$$
D
$$1.25$$
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
In an $$LCR$$ series $$a.c.$$ circuit, the voltage across each of the components, $$L,C$$ and $$R$$ is $$50V$$. The voltage across the $$L.C$$ combination will be :
A
$$100V$$
B
$$50\sqrt 2 $$
C
$$50$$ $$V$$
D
$$0$$ $$V$$ (zero)
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Alternating current can not be measured by $$D.C.$$ ammeter because
A
Average value of current for complete cycle is zero
B
$$A.C.$$ Changes direction
C
$$A.C.$$ can not pass through $$D.C.$$ Ammeter
D
$$D.C.$$ Ammeter will get damaged.
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