Virtual Experiment

Name:
Hairul Azmi Hj Sarbini 10D0004
Mohd Kamal Hizrian Bin Kamis 10D0015

This experiment will help you determine the relationship between voltage (V), amperage (I) and resistance (R). This relationship is called Ohm's Law

Please go to this website:
http://jersey.uoregon.edu/vlab/Voltage/volt1.html

Objectives:
- Students will learn relations on the Ohms laws (Voltage, current and resistor)
- Students will develop their thinking skills on how to make the circuit works

The problem consists of two parts:

1. Find the formula which describes Ohm's Law; that is, find the mathematical relationship between voltage (V), amperage (I), and resistance (R).

2. Determine the amperage of the lightbulb.

Instructions:
The first part will be discovered through a trial-and-error experiment.
- choose from a variety of batteries
- add resistor/s to the circuit.
- Turn on the switch, allowing current to flow through the circuit.
- If the resistance is too low, too much current, and bulb will explode.
- If the resistance is too great, the lightbulb will not receive enough current, and will not light.
- If the resistance is just right, the lightbulb will light up. (Note: real light bulbs are not perfect ohmic resistors as is the case here and will light partially with any amount of current).