Current Electricity as per CBSE Curriculum; Mapped to NCERT.
Chapter–3: Current Electricity Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance. Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff’s laws and simple applications, Wheatstone bridge, metre bridge. Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.
- Self-Assessing Quizzes (using Google Forms) at every page to check Learning Outcomes.
- Extra Assignments with Subjective and Objective type Questions.
- Exercises from NCERT incorporated in the content itself at appropriate places.
- Questions from previous year’s CBSE exams incorporated in the content at appropriate places.
- Lectures 16
- Quizzes 0
- Duration 3 hours
- Language English
- Students 48
- Certificate No
- Assessments Yes
Chapter 3 Current Electricity
- 3.1 Introduction
- 3.2 Electric Current
- 3.3 Electric Currents in Conductors
- 3.4 Ohm’s law
- 3.5 Drift of Electrons and the Origin of Resistivity
- 3.6 Limitations of Ohm’s Law
- 3.7 Resistivity of various Materials
- 3.8 Temperature Dependence of Resistivity
- 3.9 Electrical Energy, Power
- 3.10 Combination of Resistors — Series and Parallel
- 3.11 Cells, emf, Internal Resistance
- 3.12 Cells in Series and in Parallel
- 3.13 Kirchhoff’s Laws
- 3.14 Wheatstone Bridge
- 3.15 Meter Bridge
- 3.16 Potentiometer