PHY 112 PHY112 OHMS LAW LAB REPORT - GCU
PHY 112 Ohms Law Lab Report (Grand Canyon University)
Ohm’s law is expressed as V=IR where is shows the potential difference (voltage) across as ideal conductor is proportional to the current through it. The constant of proportionality is called resistance (RioLearn, 2018). Three variables are expressed in Ohm’s law which are voltage, current and resistance. Voltage is the difference in potential between two points in a circuit. By connecting a battery source to the circuit, the voltage causes an electric field to form which then causes the charge to move called a current, also known as the flow rate of charge. To hinder the flow of charge, a resistor is used to impede the movement of the charge (RioLearn, 2018).
On the other hand, if the resistance of the resistor increased, then the current would decrease. To measure the following values, the lab will use a multimeter which can be used as both a voltmeter and ammeter. A voltmeter measures the voltage (V) in parallel to the two points of interest in the circuit. A ammeter measured the current (amps) which helps determine the flow rate of charge in a particular part of the circuit (RioLearn, 2018).
The purpose of this lab is to explore the relationship between voltage and current through a resistor wired to a series of batteries. It is predicted that the relationship between current and voltage will represent a directly proportional relationship where if voltage increases, so will the current as long as the resistor is constant.
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