Testing Ohm’s Law Lab Report
Ohm's law is a principle that relates the voltage, current and resistance in one equation
(V=IR). It states that voltage, which is the driving force, is directly proportional to the current
provided resistance remains constant. It is a fundamental law that finds use in every electrical
and electronic application. For instance, in selection of fuses, design of electronics, power supply
systems, speed control, and heaters and many more. Therefore, it is paramount to understand the
Ohm's law and testing its validity forms the focus of this experiment.
Experimentally show the validity of Ohm's law is the core purpose of this study. The
experiment objective is to answer the following questions: When the potential difference
(voltage) across a resistor is raised, how does the current through the resistor vary? How does
this relationship behave for different resistors?
When the voltage across the resistance is increased, then there will be a corresponding
increase in current along the circuit.