Syllabus
UNIT-I
Magnetic Effects of Electric Current:
Magnetic lines of force – Field pattern due to long straight current carrying conductor – Right hand thumb
rule – Field pattern of solenoid and toroid–Work law and its applications –Biot Savart’s Law (Laplace’s
Law) – Field strength at centre and any point on the axis of a circular current carrying conductor – Field
strength around a straight current carrying conductor –Field strength on the axis of a solenoid – Simple
problems on work law and field strength.
UNIT-II
Magnetic Circuits:
Mechanical force on a current carrying conductor in magnetic field – Direction of force – Fleming’s left
hand rule – Force between two parallel current carrying conductors – Ampere – Simple problems on
force – Magnetic circuit. Comparison of magnetic circuit with electric circuit –Simple problems on magnetic
circuit – Magnetic leakage coefficient.
UNIT-III
Electromagnetic Induction:
Faraday’s laws of electromagnetic induction – Dynamically and statically induced E.M.F – Lenz’s law
and Fleming’s right hand rule – Self and mutual inductance – Co-efficient of coupling – Inductance in
series – Energy stored in a magnetic field – Energy stored per unit volume – Simple problems.
UNIT-IV
Electrostatics and Capacitance:
Coulomb’s law – Permittivity – Electrostatic field – Comparison of electrostatic and magnetic lines of force
– Electric potential – Potential difference – Dielectric strength – Dielectric constant – Capacitance – Types
of capacitors – Uses – Capacitors in series and parallel – Energy stored in capacitor - Simple problems.
UNIT-V
Inductors:
Inductors: Classify inductors – Symbols – Specifications – Important parameters of air cored inductors –
List various core materials used constructional features – Applications of A.F and R.F chokes.
UNIT-VI
Semiconductor Devices:
Electrons and holes in PN junction, forward and reverse bias –Zener
diode, Zener diode characteristics
– Formation and working of PNP and NPN transistors – Transistor
as a switch and amplifier – Transistor
configurations – CB, CE and CC–
Input and output characteristics of CB,CE and CC – Comparison of
CB,CE and CC configurations.
