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Previous year question hub

Alternating Current - Electricity - Physics Previous Year Questions

Practice Alternating Current - Electricity - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

23Papers
17Years
32Questions
1Topics

Alternating Current question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Alternating Current. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 30 93.8%
Easy 2 6.3%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 32 100%

Subject weightage

Top subjects by unique question coverage.

Physics
32 Qs

Most asked topics

Top topics across the included previous year papers.

Electricity
32 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Alternating Current
32 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

RE-NEET 2026
1 Qs
NEET 2018
2 Qs
NEET 2017
1 Qs
NEET 2016 PHASE 2
2 Qs
NEET 2016 PHASE 1
1 Qs
AIPMT 2015
1 Qs
AIPMT 2015 Cancelled Paper
1 Qs
AIPMT 2014
1 Qs
NEET 2013
1 Qs
NEET 2013 KARNATAKA
1 Qs
AIPMT 2012 PRELIMS
2 Qs
AIPMT 2012 MAINS
1 Qs
AIPMT 2011 MAINS
2 Qs
AIPMT 2011 PRELIMS
2 Qs
AIPMT 2010 PRELIMS
2 Qs
AIPMT 2010 MAINS
1 Qs
AIPMT 2009
1 Qs
AIPMT 2007
3 Qs
AIPMT 2006
2 Qs
AIPMT 2005
1 Qs
AIPMT 2004
1 Qs
AIPMT 2002
1 Qs
AIPMT 2001
1 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
RE-NEET 202620261View paper
NEET 201820182View paper
NEET 201720171View paper
NEET 2016 PHASE 120161View paper
NEET 2016 PHASE 220162View paper
AIPMT 201520151View paper
AIPMT 2015 Cancelled Paper20151View paper
AIPMT 201420141View paper
NEET 201320131View paper
NEET 2013 KARNATAKA20131View paper
AIPMT 2012 MAINS20121View paper
AIPMT 2012 PRELIMS20122View paper
AIPMT 2011 MAINS20112View paper
AIPMT 2011 PRELIMS20112View paper
AIPMT 2010 MAINS20101View paper
AIPMT 2010 PRELIMS20102View paper
AIPMT 200920091View paper
AIPMT 200720073View paper
AIPMT 200620062View paper
AIPMT 200520051View paper
AIPMT 200420041View paper
AIPMT 200220021View paper
AIPMT 200120011View paper

All Alternating Current previous year questions

Practice every matching question in batches of 20, with every available option.

1
2001 · Physics · Electricity · Alternating Current
AIPMT 2001
A capacitor of capacity C has reactance X. If capacitance and frequency become double then reactance will be
A
4X
B
X/2
C
X/4
D
2X
Open complete paper
2
2002 · Physics · Electricity · Alternating Current
AIPMT 2002
For a series LCR circuit the power loss at resonance is
A
\({{{V^2}} \over {\left[ {\omega L - {1 \over {\omega C}}} \right]}}\)
B
\({I^2}L\omega\)
C
\({I^2}R\)
D
\({{{V^2}} \over {C\omega }}\)
Open complete paper
3
2004 · Physics · Electricity · Alternating Current
AIPMT 2004
A coil of 40 henry inductance is connected in series with a resistance of 8 ohm and the combination is joined to the terminals of a 2 volt battery. The time constant of the circuit is
A
5 seconds
B
1/5 seconds
C
40 seconds
D
20 seconds
Open complete paper
4
2005 · Physics · Electricity · Alternating Current
AIPMT 2005
In a circuit L, C and R are connected in series with an alternating voltage source of frquency \(f.\) The current leads the voltage by 45o. The value of C is
A
\({1 \over {\pi f\left( {2\pi f\,L - R} \right)}}\)
B
\({1 \over {2\pi f\left( {2\pi f\,L - R} \right)}}\)
C
\({1 \over {\pi f\left( {2\pi f\,L + R} \right)}}\)
D
\({1 \over {2\pi f\left( {2\pi f\,L + R} \right)}}\)
Open complete paper
5
2006 · Physics · Electricity · Alternating Current
AIPMT 2006
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency \(f\). If L is doubled and C is changed to 4C, the frequency will be
A
\(f/2\)
B
\(f/4\)
C
\(8f\)
D
\(f/2\)\(\sqrt 2\)
Open complete paper
6
2006 · Physics · Electricity · Alternating Current
AIPMT 2006
A coil of inductive reactance 31 \(\Omega\) has a resistance of 8 \(\Omega\). It is placed in series with a condenser of capacitative reactance 25 \(\Omega\). The combination is connected to an a.c. source of 110 V. The power factor of the circuit is
A
0.33
B
0.56
C
0.64
D
0.80
Open complete paper
7
2007 · Physics · Electricity · Alternating Current
AIPMT 2007
What is the value of inductance L for which the current is maximum in a series LCR circuit with C = 10 \(\mu\)F and \(\omega\) = 1000 s\(-\)1 ?
A
1 mH
B
cannot be calculated unless R is known
C
10 mH
D
100 mH
Open complete paper
8
2007 · Physics · Electricity · Alternating Current
AIPMT 2007
The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux \(\phi\) linked with the primary coil is given by \(\phi\) = \(\phi\)0 + 4t, where \(\phi\) is webers, t is time in seconds and \(\phi\)0 is a constant, the output voltage across the secondary coil is
A
120 volt
B
220 volts
C
30 volts
D
90 volts.
Open complete paper
9
2007 · Physics · Electricity · Alternating Current
AIPMT 2007
A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 amp, the efficiency of the transformer is approximately
A
50%
B
90%
C
10%
D
30%
Open complete paper
10
2009 · Physics · Electricity · Alternating Current
AIPMT 2009
Power dissipated in an LCR series circuit connected to an A.C. source of emf \(\varepsilon\) is
A
\({{{\varepsilon ^2}\sqrt {{R^2} + {{\left( {L\omega - {1 \over {\omega }}} \right)}^2}} } \over R}\)
B
\({{{\varepsilon ^2}\sqrt {{R^2} + {{\left( {L\omega - {1 \over {C\omega }}} \right)}^2}} } \over R}\)
C
\({{{\varepsilon ^2}R} \over {\sqrt {{R^2} + {{\left( {L - {1 \over {C\omega }}} \right)}^2}} }}\)
D
\({{{\varepsilon ^2}R} \over {\left[ {{R^2} + {{\left( {L\omega - {1 \over {C\omega }}} \right)}^2}} \right]}}\)
Open complete paper
11
2010 · Physics · Electricity · Alternating Current
AIPMT 2010 MAINS
A condenser of capacity C is charged to a potential difference of V1. The plates of th condenser are then connected to an ideal inductor of inductance L. The current through the inductor when the potential difference across the condenser reduces to V2 is
A
\({\left( {{{C{{\left( {{V_1} - {V_2}} \right)}^2}} \over L}} \right)^{{1 \over 2}}}\)
B
\({{C\left( {V_1^2 - V_2^2} \right)} \over L}\)
C
\({{C\left( {V_1^2 + V_2^2} \right)} \over L}\)
D
\({\left( {{{C\left( {V_1^2 - V_2^2} \right)} \over L}} \right)^{{1 \over 2}}}\)
Open complete paper
12
2010 · Physics · Electricity · Alternating Current
AIPMT 2010 PRELIMS
A 220 volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drwn by the primary windings of the transformer is
A
3.6 ampere
B
2.8 ampere
C
2.5 ampere
D
5.0 ampere
Open complete paper
13
2010 · Physics · Electricity · Alternating Current
AIPMT 2010 PRELIMS
In the given circuit the reading of voltmeter V1 and V2 are 300 volts each. The reading of the voltmeter V3 and ammeter A are respectively

AIPMT 2010 Prelims Physics - Alternating Current Question 48 English
A
150V, 2.2A
B
220V, 2.2A
C
220V, 2.0A
D
100V, 2.0A
Open complete paper
14
2011 · Physics · Electricity · Alternating Current
AIPMT 2011 MAINS
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
\({{20} \over {\sqrt {13} }}A\)
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15
2011 · Physics · Electricity · Alternating Current
AIPMT 2011 MAINS
The r.m.s. value of potential difference V shown in the figure is

AIPMT 2011 Mains Physics - Alternating Current Question 50 English
A
\({{{V_0}} \over {\sqrt 3 }}\)
B
V0
C
\({{{V_0}} \over {\sqrt 2 }}\)
D
\({{{V_0}} \over 2}\)
Open complete paper
16
2011 · Physics · Electricity · Alternating Current
AIPMT 2011 PRELIMS
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
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17
2011 · Physics · Electricity · Alternating Current
AIPMT 2011 PRELIMS
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
Open complete paper
18
2012 · Physics · Electricity · Alternating Current
AIPMT 2012 MAINS
The instantaneous values of alternating current and voltage in a circuit are given as

\(i = {1 \over {\sqrt 2 }}\) sin (100 \(\pi\)t) ampere

\(e = {1 \over {\sqrt 2 }}\sin \left( {100\pi t + {\pi \over 3}} \right)\) Volt

The average power in watts consumed in the circuit is
A
\({1 \over 4}\)
B
\({{\sqrt 3 } \over 4}\)
C
\({1 \over 2}\)
D
\({1 \over 8}\)
Open complete paper
19
2012 · Physics · Electricity · Alternating Current
AIPMT 2012 PRELIMS
In an electrical circuit R, L, C and a.c. voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is If instead, C is removed from the circuit, the phase difference is again. The power factor of the circuit is
A
\({1 \over 2}\)
B
\({1 \over {\sqrt 2 }}\)
C
1
D
\({{\sqrt 3 } \over 2}\)
Open complete paper
20
2012 · Physics · Electricity · Alternating Current
AIPMT 2012 PRELIMS
The current \((I)\) in the inductance is varying with time according to the plot shown in figure.

AIPMT 2012 Prelims Physics - Alternating Current Question 54 English
Which one of the following is the correct variation of voltage with time in the coil ?
A
AIPMT 2012 Prelims Physics - Alternating Current Question 54 English Option 1
B
AIPMT 2012 Prelims Physics - Alternating Current Question 54 English Option 2
C
AIPMT 2012 Prelims Physics - Alternating Current Question 54 English Option 3
D
AIPMT 2012 Prelims Physics - Alternating Current Question 54 English Option 4
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Showing 20 of 32 questions