15-10-2012, 03:19 PM
Electrical Circuit Theory and Technology
At the end of this chapter you should be able to:
state the basic SI units
recognize derived SI units
understand prefixes denoting multiplication and division
state the units of charge, force, work and power and perform
simple calculations involving these units
state the units of electrical potential, e.m.f., resistance,
conductance, power and energy and perform simple
calculations involving these units
An introduction to
electric circuits
At the end of this chapter you should be able to:
recognize common electrical circuit diagram symbols
understand that electric current is the rate of movement of
charge and is measured in amperes
appreciate that the unit of charge is the coulomb
calculate charge or quantity of electricity Q from Q D It
understand that a potential difference between two points in a
circuit is required for current to flow
appreciate that the unit of p.d. is the volt
understand that resistance opposes current flow and is
measured in ohms
appreciate what an ammeter, a voltmeter, an ohmmeter, a
multimeter and a C.R.O. measure