top of page

Ohm's Law

Lesson Title: Ohm's Law

​

Grade Level: High school (10th-12th grade)

​

Subject: Science (Physics), Applied Design, Skills and Technology (ADST) Electronics

​

Objectives:

Define Ohm's Law and its equation.

Understand the relationship between voltage, current, and resistance.

Calculate voltage, current, and resistance in simple circuits.

Use simulation tool to simulate circuits and verify Ohm's Law calculations.

​

Procedure:

Introduction 

  • Introduce the topic of Ohm's Law.

  • Define Ohm's Law and its equation (V=IR).

  • Explain the meaning of voltage, current, and resistance in the equation.

  • Demonstrate how to use the equation to calculate voltage, current, and resistance in simple circuits.

  • Explain the importance of Ohm's Law in understanding and designing circuits.

Simulation

  • Introduce a simulation tool for building and testing circuits.

  • Have students create a circuit in a simulation tool to measure voltage and current.

  • Have students compare the simulated results with the calculations done in the previous step.

  • Discuss any discrepancies or errors in the measurements or calculations.

​

Hands-on Experimentation

  • Provide students with a circuit diagram.

  • Demonstrate how to use a breadboard and jumper wires to build the circuit.

  • Have students build the circuit themselves using the provided materials.

  • Using a multimeter, have students measure the voltage and current in the circuit.

​​

Synthesis 

  • Have students calculate the resistance of the circuit using the measured voltage and current.

  • Compare the calculated resistance with the resistance of the provided resistors.

  • Discuss any discrepancies or errors in the measurements or calculations.

​

Assessment:

Formative assessment: Students will participate in class discussions and activities, successfully build and measure circuits using the provided materials, and complete a simulation.

Summative assessment: Students will complete a written assessment that includes solving problems using Ohm's Law, identifying the relationship between voltage, current, and resistance in simple circuits, and simulating circuits using a simulation tool.

bottom of page