- Basic Concepts of Electricity
A clear introduction to electric charge, elementary charge, ions, conductors and insulators, free electrons, static electricity, current electricity and electric current.
- Static Electricity
Class 10 discussion of static electricity, charge accumulation, charging by friction, contact and induction, earthing, Coulomb's law, permittivity and simple numerical problems.
- Electric Potential and Potential Difference
Class 10 discussion of electric potential, potential difference, V = W/q, volt, higher and lower potential, current and electron directions, electric potential energy and potential due to a point charge.
- Electromotive Force (EMF)
A clear discussion of electromotive force (EMF), E = W/q, energy conversion in cells and batteries, open circuit, terminal voltage, internal resistance and EMF vs potential difference.
- Electric Current and Ohm's Law
Learn electric current, I = Q/t, ampere, current direction, DC and AC, Ohm's law V = IR, resistance, ohmic and non-ohmic conductors, and V-I graphs.
- Electrical Resistance and Resistivity
Learn resistance, R = ρL/A, resistivity, effects of length and cross-sectional area, temperature dependence, conductance, conductivity, rheostat, and numerical examples.
- Series and Parallel Combination of Resistances
Learn equivalent resistance, series and parallel resistor combinations, their main properties, formulas, special cases for equal resistors, and solved numerical examples.
- Electrical Power, Electrical Energy and Heating Effect of Electric Current
Learn electrical power and energy, kWh and units, Joule heating, H = I²Rt, appliance rating, nichrome, fuse and short circuit with formulas and solved examples.
- Magnetic Effect of Electric Current
Study Oersted's experiment, magnetic field around straight and circular current-carrying conductors, field direction, Right-Hand Thumb Rule, Ampere's swimming rule and compass deflection.
- Force on a Current-Carrying Conductor and Electric Motor
Study magnetic force on a current-carrying conductor, Fleming's Left-Hand Rule, Barlow's wheel, and the construction, split-ring commutator, working principle and uses of a DC motor.
- Electromagnetic Induction and Electric Generator
Study electromagnetic induction, Faraday's and Lenz's laws, induced EMF, AC-DC, and the construction, slip rings, brushes, working principle and energy conversion of an electric generator.
- Domestic Electric Circuits and Electrical Safety
Study live, neutral and earth wires, parallel connection, earthing, fuse, overload, short circuit, MCB, RCCB and key electrical safety concepts for domestic wiring.
