. Electric Cell and its Internal resistance, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoff's laws and their applications. W heatstone bridge, Metre bridge. Potentiometer - principle and its applications. Contd..P/5
- 5 - Unit - XIII: Magnetic Effects of Current and Magnetism Biot - Savart law and its application to curren t carrying circular loop. Ampere's law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric fields. Cyclotron. Force on a current - carrying conductor in a uniform ma gnetic field. Force between two parallel current - carrying conductors - definition of ampere. Torque experienced by a current loop in uniform magnetic field; Moving coil galvanometer, its current sensitivity and conversion to
ammeter and voltmeter. Current l oop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements. Para - , dia - and ferro - magnetic substances Magnetic susceptibility and permeability, Hyster esis, Electromagnets and permanent magnets. Unit - XIV: Electromagnetic Induction and Alternating Currents Electromagnetic induction; Faraday's law, induced emf and current; Lenz's Law, Eddy currents. Self and mutual inductance. Alternating currents, pea k and rms value of alternating current/ voltage; reactance and impedance; LCR series circuit, resonance; Quality factor, power in AC circuits, wattless current. AC generator and transformer. Unit – XV: Electromagnetic Waves
Electromagnetic waves and t heir characteristics. Transverse nature of electromagnetic waves. Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X - rays, gamma rays). Applications of e.m. waves . Contd...P/6 - 6 - Unit – XVI: Optics Reflection and refraction of light at plane and spherical surfaces, mirror formula, Total internal reflection and its applications, Deviation and Dispersion of light by a prism, Lens Formula, Magnification, Power of a Lens, Comb ination of thin lenses in contact, Microscope and Astronomical Telescope (reflecting and refracting) and their magnifying powers. Wave optics: wavefront and Huygens' principle, Laws of reflection
and refraction using Huygen's principle. Interferen ce, Young's double slit experiment and expression for fringe width, coherent sources and sustained interference of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes, Polarisation, plane polarized light; Brewster's law, uses of plane polarized light and Polaroids. Unit - XVII: Dual Nature of Matter and Radiation Dual nature of radiation. Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation; pa rticle nature of light. Matter waves - wave nature of particle, de Broglie relation. Davisson - Germer experiment. Unit - XVIII: Atoms and Nuclei Alpha - particle scattering experiment; Rutherford's model of atom;
Bohr model, energy levels, hydrogen spectr um.
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- Fall '10
- Magnetic Field, Fundamental physics concepts