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Electrical Technology, Volume 1 by S. P. Bali

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3

Electric Circuit

OBJECTIVES

In this chapter you will learn about:

  • The essential ingredients of an electric circuit
  • The AND circuit and the OR circuit
  • The comparison between an electric circuit and a water circuit
  • The difference between a.c. and d.c.
  • The concept of electric current and electromotive force
  • Safety precautions while working on electric equipment
  • Different types of insulators, semiconductors, and conductors used in electrical and electronic engineering and their properties
  • Different types of switches and contact materials
  • The types of electric circuit
  • Ohm’s law and simple connected problems
  • The water circuit and the electric circuit — an analogy

Water circuit

The electric circuit

3.1  INTRODUCTION

An electric circuit is ...

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