Page 552 - SUBSEC October 2017_Neat

UNIT 2
MODULE 2: A C THEORY AND ELECTRONICS

GENERAL OBJECTIVES

On completion of this Module, students should:

1. understand the principles and operation of the p-n junction diode;

2. understand the characteristics of alternating currents and their applications;

3. understand the use of transducers as input and output devices;

4. understand the use of operational amplifiers in analogue circuits; and,

5. demonstrate proficiency in the use of logic gates in digital circuits.

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

1. Alternating Currents

Students should be able to:

1.1. use the following terms in Recognition that ac
relation to an alternating voltages and currents are
current or voltage: commonly quoted in terms
of the RMS values.
(a) frequency;

(b) peak value; and,

(c) root-mean-square
value;

1.2. use an equation of the form
x = x sin ωt to represent
0
an alternating current or
voltage;

1.3. use the relationship that the Recognition that the r.m.s. Perform an experiment to
peak value is √2 times the value of an ac current (or verify the relationship
r.m.s. value for the voltage) is equivalent to between the peak value of
sinusoidal case; and, that value of dc current (or an ac current and the
voltage) which would equivalent dc current.
dissipate power at the same
rate in a given resistor.

CXC A16/U2/17 52