Unit - I Electric and Magnetic Circuits 1.1 EMF, Current, Potential Difference, Power and Energy. 1.2 M.M.F, magnetic force, permeability, hysteresis loop, reluctance, leakage factor and B - H curve. 1.3 Analogy between electric and magnetic circuits. 1.4 Electromagnetic induction, Faraday's laws of electromagnetic induction, Lenz's law, Dynamically induced emf. 1.5 Statically induced emf, a) Self induced emf, b) Mutually induced emf, Equations of self and mutual inductance. Unit - II A.C. Circuits 2.1 Cycle, Frequency, Periodic time, Amplitude, Angular velocity, RMS value, Average value, Form factor, Peak Factor, impedance, phase angle and power factor. 2.2 Mathematical and phasor representation of alternating emf and current, Voltage and Current relationship in Star and Delta connections. 2.3 A.C. in resistors, inductors and capacitors, A.C. in R - L series, R - C series, R - L - C series and parallel circuits, Power in A.C. Circuits, Power triangle Unit - III Transformer and Single phase induction motors 3.1 General construction and principle of different types of transformers, EMF equation and transformation ratio of transformers. 3.2 Auto transformers. 3.3 Construction and Working principle of single phase A.C. motor. 3.4 Types of single phase motors, Applications of single phase motors. Unit - IV Electronic Components and Signals 4.1 Active and passive components Resistors, capacitor, inductor symbols, colour codes, specifications. 4.2 Voltage and Current Sources. 4.3 Signals : waveform (sinusoidal, triangular and square), Time and frequency domain representation, amplitude, frequency, phase, wavelength. 4.4 Integrated Circuits - analog and digital. Unit - V Diodes and Applications 5.1 P - N junction diode : Symbol, construction, working and applications. 5.2 Zener diode : working principle, symbol, voltage regulator. 5.3 Rectifiers : Half wave, Full wave and Bridge Rectifier, Performance parameters : PIV, ripple factor, efficiency 5.4 Filters : circuit diagram and working of 'L', 'C' and 'π' filter. 5.5 Light Emitting Diodes : Symbol, construction, working principle and applications Unit - VI Bipolar Junction Transistor 6.1 BJT : Symbol, construction and working principle 6.2 Transistor as switch and amplifier. 6.3 Input and Output characteristics : CE, CB and CC configurations. 6.4 Operating Regions - Cut - off, Saturation and Active 6.5 Transistor parameters : CB gain α, CE gain β, input resistance and output resistance, relation between and β.