COMEDK-UGET SERIES Physics
Alternating Current
8 previous year questions.
Volume: 8 Ques
Yield: Medium
High-Yield Trend
2
2023 1
2022 1
2021 2
2010 1
2008 1
2005 Chapter Questions 8 MCQs
01
PYQ 2005
medium
physics ID: comedk-u
A step up transformer has turns ratio . A source of emf 2 volts is fed to the primary. Secondary voltage developed is
1
20 V
2
10 V
3
2 V
4
zero
02
PYQ 2008
medium
physics ID: comedk-u
Formation of Eddy currents has desirable effects in 1. Electromagnetic damping, 2. Transformer 3. Inductothermy
1
All are correct
2
Only 2 is correct
3
1 and 3 are correct
4
2 and 3 are correct
03
PYQ 2010
medium
physics ID: comedk-u
As resistance in a series resonant circuit increases (i) sharpness of resonance decreases (ii) bandwidth increases
1
both (i) and (ii) are true
2
both (i) and (ii) are false
3
(i) is true and (ii) is false
4
(ii) is true and (i) is false
04
PYQ 2010
medium
physics ID: comedk-u
An inductor coil when connected to a batt.ery draws a steady current . This coil when connected in series with a capacitor and an source of , current is in phase with applied voltage. meter included in the circuit reads
1
5 A
2
10 A
3
2 A
4
1 A
05
PYQ 2021
medium
physics ID: comedk-u
If impedance is times resistance, then find phase difference.
1
Zero
2
3
4
Data is incomplete
06
PYQ 2022
medium
physics ID: comedk-u
An alternating voltage is applied to a series combination of and an inductor of . The power factor of the circuit is,
1
2
3
4
07
PYQ 2023
medium
physics ID: comedk-u
In the series L-C-R circuit shown, the impedance is 
1
200
2
100
3
300
4
500
08
PYQ 2023
medium
physics ID: comedk-u
The instantaneous values of alternating current and voltages in a circuit given as
$ $ The average power (in watts) consumed in the circuit is
$ $ The average power (in watts) consumed in the circuit is
1
2
3
4