Question

Write a lab report on the three labs from Ohm's Law. Treat all three labs as three activities of one overall laboratory experiment.

Here is what you need to include in your lab report:

1. The title of the Lab, Name of Student, Date, Class. Include also the Purpose of the lab

2. Theory. Include all the formulae and explanation necessary from Ohm's Law. Keep in mind that each formula is on a separate line and each symbol in that formula must be explained what it means.

3. Measurements. You must re-type your data from our spreadsheet files. No copy and paste allowed. Organize your data in a table with headers, units, etc.

4. Results. Include your graphs from Ohm's Law with the slopes and the calculations. Your graphs must include titles, axis labels, slope.

5. Conclusion. Commentary on what was easy/difficult, what went wrong, what you learned, etc.

10:11 4 Drive Sheet1 ▼

Answer 1

Ohm’s Law Lab Report [With Graph, Observations and Verification]

Ohm’s law is the fundamental law of Electrical Engineering. It relates the current flowing through any resistor to the voltage applied to its ends. According to the statement: The current flowing through a constant resistor is directly proportional to the voltage applied to its ends. This article presents the complete Ohm’s law Lab report and various questions regarding the lab. The latter portion simplifies the law for beginners by delineating the absolute basic concepts for beginners.

Objectives of Ohms Law Lab report

To verify that voltage and current are directly proportional using a 1kΩ resistor.

List of Components

• Variable DC Power supply
• 1kΩ resistor (Color code Brown, Black, Red, Gold)
• Breadboard
• Connecting wires (Jumper wires)
• Ammeter

Circuit Diagram

Setup the circuit diagram as shown below:

10 V

Steps

1. Implement the circuit on the breadboard as shown in circuit diagram.
2. Initially set the VDC supply to 0 V and note the current on ammeter.
3. Increase the voltage to 1 V, observe the ammeter and note the readings.
4. Repeat the above step for 2 V, 3V … 10 V.
5. Plot a graph for measured readings.
6. Compare the plot with theoretical calculations.

Observation table

Make two columns (the third one for Sr. no is optional).

Calculations [Verification of Ohm’s law report]

The theoretical calculations are achieved from the original formula, V = IR. You can also verify them from the basic Ohm’s law calculator.

Current (mA) 0 V Voltage (V) 1 V 2 V 3 V 4 V 5 V 6 V 7 V 8 V 9 V 10 V 1 mA 2 mA 2 mA 4 mA 5 mA 6 mA 7 mA 8 mA 9 mA 10 mA

Graph for Ohm’s Law Lab report

The real (practically calculated – red color) vs the theoretical values (blue) are plotted on the graph. While most theoretical values are identical to practical values, one might note a difference of red dot for 2.99 mA and 6.99 mA.

10 Theoretical values 9Real values www.ohmzw.com 1 2 3 4 5 678 9 10

Conclusion from Ohm’s Law lab Report

We learned that current and voltage hold a direct relationship for resistive components. (They are linearly proportional).