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Path to 300

Physics / Topic coverage

Current Electricity

Circuit analysis under Adv constraints — fewer Qs but often multi-correct.

Weight lowIntensity Rotate · fortnightlyTrend Stable300-target 3.3 /100low
Path to 300

Mark budget for this portion

Full 300 plan →
At ~3.4% of physics weight, this portion should reliably deliver ~3 of your 100 physics marks — treat misses here as rank-droppers.
2.6Floor marks
3.3Target marks
3.8Stretch marks
3.4%Of subject weight
100Subject target
At a glance

Coverage metrics

8Tagged questions
3.4%Of Physics
1.14Average / year
2021Peak year (2 Q)
5/7Years present
Official · 2026

Syllabus map for this portion

Full Physics syllabus →
Current electricity block + linked experiments (Ohm, meter bridge).

Must cover from syllabus

  • Kirchhoff applications
  • Series/parallel cells with internal r
  • Heating effect

Gaps / exclusions to watch

No special exclusions flagged — finish the unit list below.

Unit 01

Electricity — Current Electricity

medium

Exam focusKirchhoff loops, series/parallel cells, heating effect.

Syllabus points

  • Electric current; Ohm’s law; series/parallel resistors and cells
  • Kirchhoff’s laws and simple applications; heating effect of current

Do / check

  • Assign loop currents consistently
  • Check internal resistance of cells in network problems
Unit 02

General (Units, Errors, Experiments)

medium

Exam focusDimensional analysis, significant figures, experiment setups named in syllabus.

Syllabus points

  • Units and dimensions; dimensional analysis; least count; significant figures
  • Error analysis for listed experiments: Vernier, screw gauge, g by pendulum, Young’s modulus, surface tension by capillary, calorimeter specific heat, u–v focal length, resonance column, Ohm’s law, meter bridge / post office box

Do / check

  • Write least count and % error formula before computing
  • Know what each named experiment measures
2020–2026

Year-wise appearance

Counts of tagged questions for this topic each year.

201
212
221
232
240
250
262

Reading the pattern

  • Current Electricity accounts for ~3.4% of tagged physics questions (2020–2026).
  • Trend signal: stable (early-window avg 1.3/yr vs recent avg 0.7/yr).
  • Appears in 5/7 tagged years; peak 2021 (2 Q), low 2024 (0 Q).
  • Dominant subtopics: Circuits (8).
  • Question-type mix: Numerical 50.0%, Multi correct 37.5%, Single correct 12.5%.
Internal breakdown

Subtopic coverage

Start with the top subtopics — they usually carry most of this portion’s weight.

  • Circuits8 · 100%
SubtopicCountShareYears (count)
Circuits8100%2020·1 2021·2 2022·1 2023·2 2026·2
Exam form

Type & difficulty mix

Question types

  • Numerical — 4 questions (50%)
  • Multi correct — 3 questions (37.5%)
  • Single correct — 1 questions (12.5%)

Difficulty (heuristic)

  • M — 4 questions
  • H — 4 questions

Use for planning load only — not an official difficulty label.

Focused study

Plan for this portion

Must know

  • Kirchhoff loops
  • Meter bridge / potentiometer ideas
  • RC transient basics if asked

Common traps

  • Wrong current direction assumptions

Weekly drill checklist

  • 2 circuit numericals
  • 1 instrument conceptual

Prerequisite chain

Ohm→Kirchhoff→instruments

Often joins with

ElectrostaticsMagnetism/EMI/AC
Paper pointers

Sample tagged questions

Use these as deliberate practice targets from past papers.

YearPaperQSubtopicTypeDiff
2020P2Q14CircuitsNUMM
2021P1Q15CircuitsMCH
2021P2Q17CircuitsNUMM
2022P1Q10CircuitsMCH
2023P1Q3CircuitsMCH
2023P2Q9CircuitsNUMH
Physics

Other portions

MechanicsOpticsThermodynamics/Kinetic TheoryElectrostaticsWaves/SHM/SoundMagnetism/EMI/ACModern PhysicsFluid/Properties of Matter
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