Everything Science Grade 12
CHAPTER 14. ELECTRONICS 14.4 the negative terminal ofthe battery supplying itor higher than the positive terminal of the battery ...
14.4 CHAPTER 14. ELECTRONICS Extension: Calculating the gain of the amplifier in Figure 14.16. The input resistanceof the opera ...
CHAPTER 14. ELECTRONICS 14.5 14.5 The Principles of Digital Electronics ESCGK The circuits and components we have discussed are ...
14.5 CHAPTER 14. ELECTRONICS Using a computer, any information can beturned into a pattern of0s and 1s. Pictures, recorded musi ...
CHAPTER 14. ELECTRONICS 14.5 The action of the NOTgate can be written ina table called a truth table. The left column shows the ...
14.5 CHAPTER 14. ELECTRONICS This device is called anAND gate, because theoutput is only 1 if one input AND the other input are ...
CHAPTER 14. ELECTRONICS 14.5 The OR Gate Problem: A long, dark corridor has two light switches — one at each end of the corridor ...
14.5 CHAPTER 14. ELECTRONICS Figure 14.20: Symbol for the NOR logic gate. The truth table for the NOR gate is shown below. Input ...
CHAPTER 14. ELECTRONICS 14.5 Occupied Hot Output Example 4: Solving a circuit with two logic gates QUESTION Compile the truth ta ...
14.5 CHAPTER 14. ELECTRONICS A B C Output 0 0 1 0 0 1 0 1 1 0 0 1 1 1 0 1 Finally we see that this combination of gates does the ...
CHAPTER 14. ELECTRONICS 14.6 More practice video solutions or help at http://www.everythingscience.co.za (1.) 01k4 (2.) 01k5 (3. ...
14.6 CHAPTER 14. ELECTRONICS Example 5: Conversion of Binary Numbers to Denary Numbers QUESTION Convert the binary number 10101 ...
CHAPTER 14. ELECTRONICS 14.6 Counting circuits ESCGO To make a counter youneed several ‘T flip flops’, sometimes called ‘divide ...
14.6 CHAPTER 14. ELECTRONICS T Q Input T Q Q 0 T Q Q 1 Q 2 Figure 14.22: Three T flip flops connected together in a chain to mak ...
CHAPTER 14. ELECTRONICS 14.6 DEFINITION: Modulo The modulo of a counter tells you how manystages (or pulses) it re- ceives befor ...
14.6 CHAPTER 14. ELECTRONICS R Q S R Q S Figure 14.23: A bistablecircuit made from two NOR gates. This circuit isable to store o ...
CHAPTER 14. ELECTRONICS 14.6 R Q S Figure 14.25: The output of a bistable circuit is reset (made 0) by raising the‘R’ input to 1 ...
14.6 CHAPTER 14. ELECTRONICS The instantaneous value ofVRchanges but inductive reactance, which is the ratio of the maximum val ...
CHAPTER 14. ELECTRONICS 14.6 Draw the symbols for the five logic gates, and write down their truth tables. Draw a circuit diagr ...
Electromagnetic Radiation 15 15.1 Introduction ESCGQ This chapter will focuson the electromagnetic(EM) radiation. Electromagneti ...
«
15
16
17
18
19
20
21
22
23
24
»
Free download pdf