Introduction to lab

1. Analog and Digital
Electronics LAB
[15CSL37]
Introduction
By:
Gururaj S
CSE Dept.
GNDEC Bidar

5. Resistor Color Code
• Manufacturers typically use a
color band system known as the
resistor color code
• Within this power point, you
will learn how to identify the
nominal resistance and the
tolerance of a resistor

6. 4-Band Resistors
The resistor nominal value is encoded in the color
code in Powers of Ten Notation. The template for
determining the nominal value and tolerance of a
resistor with 4 color bands is given below:
1st Band =
1st Significant
Digit
2nd Band =
2nd Significant
Digit
3rd Band =
Multiplier
4th Band =
Tolerance
___ ___  10    ____ %

7. How do we know which color
corresponds to which number?
Answer: Using the Resistor Color Code
Table

8. • It is typical to express the resistance value in:
k if the resistance  1,000
M if the resistance  1,000,000.
 To convert from  to k,  to M, or vice-
versa, use the table below:
 In the previous example we would say the
resistor has a nominal value of:


k1
000,1
000,1

9. Resistor symbol
Some Q’s
•Ohms law
•Equation
•Resistor in Series
•Resistor in Parallel

10. OHMS LAW

11. Sign Conventions
• The sign convention used with
a capacitor is the same as for
a power dissipating device.
• When current flows into the
positive side of the voltage
across the capacitor, it is positive
and the capacitor is dissipating
power.
• When the capacitor releases
energy back into the circuit, the
sign of the current will be
negative.

12. Current-Voltage
Relationships




1
1
t
t
CC
C
C
C
C
o
dti
C
v
dt
dv
Ci
dt
dq
i
Cvq

13. Mica capacitor

14. calculations

15. Electrolytic capacitor

16. Diodes
IN4007
BY127
P(A) N(K)
P(A)
N(K)

17. Transistor

18. OP-AMP
Op-amps are among the most
widely used electronic devices
today, being used in a vast
array of consumer, industrial,
and scientific devices. Many
standard IC op-amps cost only
a few cents in moderate
production volume.

19. Circuit Symbol

20. IC uA741

21. 555 Timer

22. Software's used