A resistor is a passive electrical component that implements electrical resistance. It follows Ohm's Law such that voltage divided by resistance equals current. There are two main types - fixed resistors with a set resistance and variable resistors whose resistance can be adjusted. Resistors can be connected in series or parallel. The resistor color code uses bands of color to indicate resistance value and tolerance. The power rating specifies the maximum power a resistor can withstand before being damaged.

1. Resistor
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2. Presentation
Overview
Resistor
What is Resistor?
Types of Resistor
Connection of resistor
Resistor colour code
Resistor power rating

3. A resistor is a
passive two-
terminal electrical
component that
implements
electrical
resistance as a
circuit element.
What is Resistor?

4. Electronic
symbol for
Resistor

5. The resistor's current I in amps (A)
is equal to the resistor's voltage V
in volts (V) divided by
the resistance R in ohms (Ω): V is
the voltage drop of the resistor,
measured in Volts (V).
Resistor
formula
According to Ohm's
Law

6. Two types
Fixed Resistor
Variable Resistor
1.
2.
Types
of
Resistor

7. SERIES CONNECTION
PARALLEL CONNECTION
1.
2.
Connections of Resistor

8. Series
connections
Resistor connections

9. Series
connections

10. Parallel
connections
Resistor connections

11. Parallel
connections

12. GREEN
Resistor
Colour
Code
VIOLET
BLUE
RED

13. Resistor Colour Code

14. ColourCode
Table

15. The power rating of
a resistor is the
specification given with
a resistor that serves to tell
the maximum amount
of power that
the resistor can withstand.
if a resistor has a power rating of 1/4 watts, 1/4 watts is
the maximum amount of power that should be fed
Resistor Power
Rating

16. Resistor Power Rating

17. THANK YOU
Topic 1 - Resistor