How to Calculate Potential Difference

Potential difference is
••• Tryfonov Ievgenii/iStock/Getty Images

The potential difference in a circuit is what causes current to flow through the circuit. The larger the potential difference, the faster the current will flow and the higher the current. The potential difference is the measure of the difference in voltage between two distinct points in a closed circuit. Potential difference also is known as p.d., voltage difference, voltage or electric potential difference. This measure also is the energy per unit charge that is required to move a charged particle from one point to another.

    Determine the amount of current traveling through the circuit. This value is usually measured in amperes.

    Measure the amount of resistance in the circuit. Resistance comes from a resistor, a device in the circuit or simply the amount of resistance from the conductor (wire) in the circuit.

    Multiply the amount of the current by the amount of resistance in the circuit. The result of the multiplication will be the potential difference, measured in volts. This formula is known as Ohm's Law, V = IR.

Related Articles

How to Calculate 30 KW to Amps
How to Convert Ohms to Kilowatts
What Is Ohm's Law & What Does It Tell Us?
Characteristics of Aquatic Plants
How to Convert 12 Volt Alternator to 120 Volts
How to Wire a Battery in Series
How to Calculate Battery Voltage
How to Convert Amps Into BTUs
How to Convert 12 Volt to 6 Volt
How to Calculate Millivolts to Amps
How to Calculate Voltage Across a Resistor
Test Your Knowledge on Middle School Science
How to Calculate the Field Current in a DC Motor
How to Calculate IRMS
How to Calculate Output Voltage
How to Change Electrical Amps to Watts
How to Test Electrical Conductivity
How to Calculate the Short Circuit Rating
How to Make a Battery With Capacitors
An Electrical Engineer's Vocabulary Words