ELECTRICITY AND MAGNETISM Total Marks-35 Pass Marks : 12 Group A Electrostatic Electric field and potentia...
ELECTRICITY AND MAGNETISM
Total Marks-35 Pass Marks : 12
Group A Electrostatic
Electric field and potential: Electric flux, potential as line integral of electric field, intensity potential relation, Gauss’s theorem in integral and differential form, application of Gauss’s theorem to simple problems.
Mechanical force on charged conductor: Energy in an electrostatic medium, Field and potential due to electric dipole, forces and Torques between dipoles, mutual potential energy.
Electric capacity: Capacity of spherical and cylindrical condensers.
Group B Magnetism
Magnetism: Magnetic dipole its field and potential, potential energy of magnetic dipole in uniform magnetic field, mutual potential energy between dipoles, dipoles in homogeneous magnetic field.
Magnetic field in matter: Intensity of magnetisation, Permeability & susceptibility, Hysteresis & Hyteresis loss, Distinguishing features of para, dia-& ferro magnetic materials.
Steady current: Kirchoff’s law, sensitivity of wheat stone bridge, principle of potentiometer, measurement of electric current using potentiometer.
Group C Electromagnetism
currents: Application of Biot-savart’s law to circular coil carrying current, a solenoid carrying current Helmholtz coil. Magnetic shell, potential at a point due to magnetic shell. Equivalent magnetic shell & ampere’s theorem. Ballistic galvanometer, its sensitivity & figure of merit.
Electromagnetic induction: Integrated & differential form of Faraday’s law. Energy in magnetic fields due to establishment of current in a circuit, mutual inductance between two coils, Growth and decay of current in L-R, C-R, L-C, L-C-R circuits, induction coil. ‘
Reactance and impedance of A.C. Circuits, power consumed in AC circuit & Power factor, Transformer.
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