Slide 1

advertisement
+
Using Ohm’s
Law to Build a
Voltage Divider
1
+
2
Learning Objectives
 Understand
and demonstrate the
engineering design process
 Use
Ohm's Law as a tool for engineering
design.
 Use
a digital multimeter to collect data.
 Analyze
the electrical requirements of light
emitting diodes (LED’s).
3
A Voltage Divider
A
voltage is applied to
two resistors in series
 The
same amount of
current flows through
each resistor
 Voltage
is divided
between R1 and R2
 Ohm’s
Law
+
4
Getting Started
Divide
into Teams - Engineers
work with Teachers
Review
the materials
Challenge
#1: Voltage Divider
Challenge
#2: Light an LED
+
5
Challenge #1
 Learning
to read resistor
values
 Using
a breadboard to build
an example voltage divider
 Build
a voltage divider to
meet a design requirement
+
6
Challenge #2
 Design
your circuit - What voltage and
current are required by the LED?
 Build
your circuit - What is the polarity of
your LED?
 Test
your design. Did you get the desired
voltage and current? What is the voltage
across the LED
 Try
a different design goal
+
7
Reflections
 What
factors affected your design
 Measured
vs Specified Battery Voltage
 Measured vs Specified Resistance
 Teaching
the Math Concepts
 Solving
Simultaneous Equations
 Trial and Error
 Modifications
to the lesson for your grade
 Incorporating
the lesson into our classroom
level
Download
Related flashcards

Video game consoles

47 cards

Digital electronics

21 cards

Consumer electronics

24 cards

Television technology

33 cards

Radar

16 cards

Create Flashcards