Uploaded July 2019 | Updated September 2026, 13 minutes ago
An explanation of Ohm's law. Also includes two worked examples when solving for voltage, current and resistance using ohm's law.
Ohm's law, V = I x R, states that the current through a conductor is directly proportional to the voltage across a resistor and inversely proportional to the resistance of the resistor. I is the current through the resistor in amperes, V is the voltage measured across the resistor in volts, and R is the resistance of the resistor in ohms. Ohm's law holds for circuits containing only resistive elements, regardless of whether the voltage or current is constant (DC) or time-varying such as AC. It can be used for series, parallel and resistors in combination. When resistors are in series or in parallel they may be combined into a single "equivalent resistance" in order to apply Ohm's law in analyzing the circuit.
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An explanation of Ohm's law. Also includes two worked examples when solving for voltage, current and resistance using ohm's law.
Ohm's law, V = I x R, states that the current through a conductor is directly proportional to the voltage across a resistor and inversely proportional to the resistance of the resistor. I is the current through the resistor in amperes, V is the voltage measured across the resistor in volts, and R is the resistance of the resistor in ohms. Ohm's law holds for circuits containing only resistive elements, regardless of whether the voltage or current is constant (DC) or time-varying such as AC. It can be used for series, parallel and resistors in combination. When resistors are in series or in parallel they may be combined into a single "equivalent resistance" in order to apply Ohm's law in analyzing the circuit.
Social Media for Step by Step Science:
Teacher Pay Teachers Store: tinyurl.com/y6d2cdfj
Instagram: instagram.com/stepbystepscience101
Website: stepbystepscience.com
Blog: stepbystepscience.com/blog
Link Tree: https://linktr.ee/stepbystepscience
Link for sharing this video: youtu.be/GJrfiC2X4wU
Support my channel by doing all of the following:
(1) Subscribe, get all my physics, chemistry and math videos
(2) Give me a thumbs up for this video
(3) Leave me a positive comment
(4) Share is Caring, sharing this video with all of your friends
