JEE Main · Physics · Current Electricity
Power Dissipation Ratios in Series vs Parallel
JEE Main asked Power Dissipation Ratios in Series vs Parallel 5 times in 5 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024 and 2025. It belongs to Ohm's Law and Resistance, in Current Electricity (Physics). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 5
- in 5 shifts
- Years
- 5 of 8
- First asked
- 2021
- last in 2025
- Pattern
- Asked most years
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021, 2022, 2023, 2024 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 1 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: application.
- Power of identical bulbs in series
- Ratio of heat in series vs parallel
Difficulty
2 of the 5 questions had a numerical answer.
Every question
All 5 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 4 Apr 2025, Shift 2 · Q36There are 'n' number of identical electric bulbs, each is designed to draw a power p independently from the mains supply. They are now…EasySingle correct
- 5 Apr 2024, Shift 2 · Q42The ratio of heat dissipated per second through the resistance and in the circuit given below is :EasySingle correctHas a figure
- 11 Apr 2023, Shift 1 · Q40Two identical heater filaments are connected first in parallel and then in series. At the same applied voltage, the ratio of heat produced…EasySingle correct
- 29 Jun 2022, Shift 1 · Q51Two coils require 20 minutes and 60 minutes respectively to produce same amount of heat energy when connected separately to the same…EasyNumerical value
- 4 Aug 2021, Shift 2 · Q22Two heaters X and Y are connected is parallel across the supply of V volts. Heater X generates 500 kCal of heat in 20 minutes while Y…MediumNumerical value
Shifts: 4 Aug 2021, Shift 2, 29 Jun 2022, Shift 1, 11 Apr 2023, Shift 1, 5 Apr 2024, Shift 2, 4 Apr 2025, Shift 2.
Same topic
Other ideas in Ohm's Law and Resistance
Ohm's Law and Resistance has 21 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.
- Joule Heating and Power15× · 2025
- Resistivity and Geometry10× · 2023
- Resistance of Stretched Wires8× · 2024
- Error Analysis in Ohm's Law7× · 2026
- Temperature Coefficient of Resistance7× · 2024
- Drift Velocity and Current5× · 2023
- Resistance of Cut and Recombined Uniform Wires4× · 2024
- Ohm's Law and V-I Graphs3× · 2024
- Temperature Dependence in Semiconductors2× · 2024
- Integrating Non-Uniform Current Density2× · 2022
- Resistance of Bent Wires and Loops2× · 2021
- Electrical Energy Consumption Unitsonce · 2025