B.Sc. PHYSICS SYLLABUS UNDER CBCS

For Mathematics Combinations

[2020-21 Batch onwards]

II Year B.Sc.-Physics: IV Semester

Course-IV: ELECTRICITY, MAGNETISM AND ELECTRONICS

Work load:60 hrs per semester                                                                    4 hrs/week

—————————————————————————————————————–

 

Course outcomes:

On successful completion of this course, the students will be able to:

• Understand the Gauss law and its application to obtain electric field in different cases and formulate the relationship between electric displacement vector, electric polarization, Susceptibility, Permittivity and Dielectric
• Distinguish between the magnetic effect of electric current and electromagnetic induction and apply the related laws in appropriate circumstances.
• Understand Biot and Savart’s law and Ampere’s circuital law to describe and explain the generation of magnetic fields by electrical currents.
• Develop an understanding on the unification of electric and magnetic fields and Maxwell’s equations governing electromagnetic
• Phenomenon of resonance in LCR AC-circuits, sharpness of resonance,Q- factor,Power factor and the comparative study of series and parallel resonant
• Describe the operation of p-n junction diodes, zener diodes, light emitting diodes and transistors
• Understand the operation of basic logic gates and universal gates and their truth tables.

UNIT-I

Electrostatics:                              (6hrs)

Gauss’s law-Statement and its proof, Electric field intensity due to (i) uniformly charged solid sphere and (ii) an infinite conducting sheet of charge, Deduction of Coulomb’s law from Gauss law, Electrical potential–Equipotential surfaces, Potential due to a (i) dipole (ii)uniformly charged sphere

2. Dielectrics:                             (6 hrs)

Dielectrics-Polar and Non-polar dielectrics- Effect of electric field on dielectrics, Dielectric strength, Capacitance of a parallel plate condenser with dielectric slab between the plates, Electric displacement D, electric polarization P,Relation between D, E and P, Dielectric constant and electric susceptibility.

UNIT-II

3. Magnetostatics: (6 hrs)

Biot- Savart’s law and its applications: (i) circular loop and (ii) solenoid, Divergence and curl of magnetic field, Ampere’s Circuital Law and its application to Solenoid, Hall effect, determination of Hall coefficient and applications.

4. Electromagnetic Induction:                              (6 hrs)

Faraday’s laws of electromagnetic induction, Lenz’s law,Self induction and Mutual induction, Self inductance of a long solenoid, Mutual inductance of two coils, Energy stored in magnetic field, Eddy currents and Electromagnetic damping

UNIT-III

5. Alternating currents: (6 hrs)

Alternating current – Relation between current and voltage in LR and CR circuits, Phasor and Vector diagrams, LCR series and parallel resonant circuit, Q –factor, Power in ac circuits, Power factor.

6. Electromagnetic waves-Maxwell’s equations: (6 hrs) Idea of displacement current, Maxwell’s equations-Derivation, Maxwell’s wave equation (with derivation), Transverse nature of electromagnetic waves, Poynting theorem (Statement and proof)

UNIT-IV

7. Basic Electronic devices: (12 hrs)

PN junction diode, Zenerdiode and Light Emitting Diode (LED) and their I-V characteristics, Zener diode as a regulator- Transistors and its operation, CB, CE and CC configurations, Input and output characteristics of a transistor in CE mode, Relation between alpha, beta and gamma; Hybrid parameters, Determination of hybrid parameters from transistor characteristics; Transistor as an amplifier.

UNIT-V:

8. Digital Electronics: (12 hrs)

Number systems, Conversion of binary to decimal system and vice versa, Binary addition & Binary subtraction (1’s and 2’s complement methods), Laws of Boolean algebra, DeMorgan’s laws-Statements and Proofs, Basic logic gates, NAND and NOR as universal gates, Exclusive-OR gate, Half adder and Full adder circuits.

REFERENCE BOOKS

• BSc Physics, Vol.3, Telugu Akademy,
• Electricity and Magnetism, D.N. Vasudeva. S. Chand &
• Electricity and Magnetism, B.D.Duggal and C.L.Chhabra. Shobanlal&
• Electricity, Magnetism with Electronics, K.K.Tewari, R.Chand& ,
• Electricity and Magnetism, R.Murugeshan, S. Chand &
• Principles of Electronics, V.K. Mehta, S.Chand& ,
• Digital Principles and Applications, A.P. Malvino and D.P.Leach, McGrawHill Edition.