Define the terms Electrostatic Flux, Flux density, Field intensity, Electric potential and their units. 2. Find equivalent capacitance when the capacitance are connected in series and in parallel B 1. A circuit consists of three resistors of 3ohm, 3ohm and 6ohm in Parallel and a fourth resistor of 4ohm in series. A battery of EMF 12V and internal resistance 5ohm disconnected across the circuit. a) Draw a diagram of the arrangement. b) Find the total external Resistance c) What is the total current in circuit.d) Total power. 2.The total capacitance of two capacitor is 0.333 F when joined in series and 1.5F when connected in parallel. Find the capacitance of each capacitor. II A 1. State and Explain super position theorem. 2. State and Explain maximum power transfer theorem.Describe the construction of a Nickel iron cell and discuss the chemical action taking place during charging and discharging. 2. Give an account of different charging methods and explain any one method with a circuit diagram.Principle of operation – Constructional details Types of D.C. Generators – Emf equation (Simple problems) – Lap and Wave winding (No winding diagram) – Different types of excitation – OCC of separately excited and self excited (shunt & compound generators) – Load characteristics of Self excited (Series, shunt & compound generators) – Critical resistance – Conditions for self excitation – Armature reaction – Effects and methods of compensation of Armature reaction – Commutation – Causes of voltage drop – Losses – Efficiency – Electrical, mechanical and commercial efficiency- maximum efficiency problems – Applications of D.C. Generators,
