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Chapter 11 of 14
Revision Notes

Electric Current Through Conductors

Maharashtra Board · Class 11 · Physics

Quick revision notes for Electric Current Through Conductors — Maharashtra Board Class 11 Physics. Key concepts, formulas, and definitions for last-minute revision.

45 questions24 flashcards5 concepts

Key Topics to Revise

1

Electric Current and Drift Velocity

  • Electric current is defined as the amount of charge flowing per unit time through a cross-section
  • Current I = Q/t, where Q is charge and t is time
  • SI unit of current is Ampere (A)
2

Ohm's Law and Resistance

  • Ohm's law: Current through a conductor is directly proportional to potential difference across it
  • V = IR, where R is resistance of the conductor
  • Resistance is the property of a conductor to oppose current flow
3

Resistivity and Temperature Dependence

  • Resistivity is intrinsic property of material, independent of shape and size
  • Unit of resistivity: Ωm
  • Conductivity σ = 1/ρ, unit: S/m
4

Combination of Resistors

  • Series combination: Same current flows through all resistors, voltages add up
  • Parallel combination: Same voltage across all resistors, currents add up
  • Series: Rs = R₁ + R₂ + R₃ + ..., equivalent resistance increases

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Full Notes

Key Concepts

Electric current I is defined asWhen electric field is appliedStates that current through a conductorResistance R = ρl/A depends onPower dissipated in resistor

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Frequently Asked Questions

What are the important topics in Electric Current Through Conductors for Maharashtra Board Class 11 Physics?

Electric Current Through Conductors covers several key topics that are frequently asked in Maharashtra Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.