1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is connected across the coil, the current in the coil will be
A
2.0 A
B
4.0 A
C
8.0 A
D
$${{20} \over {\sqrt {13} }}A$$
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
The r.m.s. value of potential difference V shown in the figure is

AIPMT 2011 Mains Physics - Alternating Current Question 41 English
A
$${{{V_0}} \over {\sqrt 3 }}$$
B
V0
C
$${{{V_0}} \over {\sqrt 2 }}$$
D
$${{{V_0}} \over 2}$$
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
An ac voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to 3 $$\Omega $$, the phase difference between the applied voltage and the current in the circuit is
A
$$\pi /6$$
B
$$\pi /4$$
C
$$\pi /2$$
D
zero
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
In the ac circuit an alternating voltage e = $$200\sqrt 2 $$sin100t volts is connected to a capacitor of capacity 1 $$\mu $$F. The r.m.s. value of the current in the circuit is
A
10 mA
B
100 mA
C
200 mA
D
20 mA
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