JEE-MAIN SERIES Physics
Ac Voltage
5 previous year questions.
Volume: 5 Ques
Yield: Medium
High-Yield Trend
2
2024 1
2023 2
2022 Chapter Questions 5 MCQs
01
PYQ 2022
medium
physics ID: jee-main
The I–V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltage of 2 V and 4 V respectively, is
1
1:2
2
5:1
3
1:40
4
20:1
02
PYQ 2022
medium
physics ID: jee-main
The maximum and minimum voltage of an amplitude modulated signal are 60 V and 20 V, respectively. The percentage modulation index will be:
1
0.5%
2
50%
3
2%
4
30%
03
PYQ 2023
medium
physics ID: jee-main
A student is provided with a variable voltage source V, a test resistor Rr = 10Ω, two identical galvanometers G1 and G2 and two additional resistors, R1 = 10MΩ and R2 = 0.001Ω. For conducting an experiment to verify ohms law, the most suitable circuit is
1
2
3
4
04
PYQ 2024
medium
physics ID: jee-main
In circuit with source voltage = is connected to series circuit whose power factor is If , the new power factor is :
1
2
3
4
05
PYQ 2024
medium
physics ID: jee-main
Alternating voltage and current in circuit is given as volt
Find average power dissipated in circuit.
Find average power dissipated in circuit.
1
2.5 w
2
5 w
3
10 w
4
20 w