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KEY AREAS IN THIS TOPIC :

➢ Coulomb’s law;
➢ Electric field and potential;
➢ Electrical potential energy of a system of point charges and of electrical
dipoles in a uniform electrostatic field;
➢ Electric field lines;
➢ Flux of electric field;
➢ Gauss’s law and its applications.
field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell.
➢ Capacitance;
➢ Parallel plate capacitor with and without dielectrics;
➢ Capacitors in series and parallel;
➢ Energy stored in a capacitor.
➢ Electric current;
➢ Ohm’s law;
➢ Series and parallel arrangements of resistances and cells;
➢ Kirchhoff’s laws and simple applications;
➢ Heating effect of current.
➢ Biot–Savart’s law and Ampere’s law;
➢ Magnetic field near a current-carrying
➢ straight wire, along the axis of a circular coil and inside a long straight solenoid.
➢ Force on a moving charge and on a current-carrying wire in a uniform
magnetic field.
➢ Magnetic moment of a current loop;
➢ Effect of a uniform magnetic field on a current loop;
➢ Moving coil galvanometer, voltmeter, ammeter and their conversions.
➢ Electromagnetic induction:
➢ Faraday’s law,
➢ Lenz’s law;
➢ Self and mutual inductance;
➢ RC, LR, LC and LCR (in series) circuits with d.c. and a.c. sources.