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William Hampton
Partner: Travis Hampton
Date: 9/3/10
Ohm’s Law I—Elementary DC Circuits with Light Bulbs
The purpose of this experiment was to see the relationship between current,
resistance, power, and electric potential.
The other aim was to learn about the
different properties and setups of DC circuits including series and parallel circuits.
The main focus behind the laboratory experiment is Ohm’s Law.
It is defined as
the relationship between the current I as it flows through a resistance R and the
potential drop across it V (Contemporary Introductory Physics Experiments).
The
formula is:
I=V/R where I = current; R = resistance; and V = the potential
difference.
The formula for power is: P=V x I where P = power; I = current; and V
= the potential difference.
The entire variables can be rearranged as
P=VI=I^2R=V^2/R.
There were many different apparatuses used during this experiment.
A
circuit board connected to a power supply that varied from 0 to 18 volts was the
main component.
Connecting the circuit board to the power supply were double

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