Description
Very straightforward lab. Report is not needed. Just complete all procedures and get the spreadsheet done please.
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Explanation & Answer
Attached.
Running Head: OHM’S LAW USING PhET SIMULATION
Ohm’s Law using PhET Simulation
Name
Institution
1
OHM’S LAW USING PhET SIMULATION
2
Ohm’s Law using PhET Simulation
Objectives
The objective of this experiment is to determine the mathematical relationship between the
current, resistance and potential difference in a simple circuit. Also, determine the behaviors of
potential difference versus current of a resistor and the behavior of current versus resistance for a
fixed potential difference.
Preliminary Questions
1. When the voltage doubles the current also doubles.
2. The type of relationship that exist between voltage and current is direct variation.
3. When the resistance is doubled, the current decrease by half.
4. The type of relationship that exist between current and resistance is inverse variation.
Procedure A
1. Setting the resistance slider to 300Ω
Resistance R = 300Ω
Potential (V)
Current (mA)
1.5
5
3.0
10
4.5
15
6.0
20
7.5
25
9.0
30
OHM’S LAW USING PhET SIMULATION
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2. The graph of potential versus current
Potential Versus Current
10
9
y = 0.3x
8
Potential (V)
7
6
5
4
3
2
1
0
0
5
10
15
20
25
30
35
Current (mA)
3. The slope of the graph.
Solution
The slope=0.3
Resistance = 0.3 × 1000 = 300 Ω
Percentage error
% error = |
vA − vE
300 − 300
| × 100 = |
| × 100 = 0%
vE
300
The slope times 1000 value is exactly equal to the resistance set in the simulation
with a percentage error of 0%.
Procedure B:
1. Setting the resistance slider to 600Ω
Resistance R = 600Ω
OHM�...