https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-circuits/x0e2f5a2c:current-resistivity-ohms-law/v/circuits-part-1 2024-05-29T15:10:23.071133296Z Ohm's law Ohm's Law is V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law allows you to determine characteristics of a circuit, such as how much current is flowing through it, if you know the voltage of the battery in the circuit and how much resistance is in the circuit. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/b84a04ee-f19e-4ed0-aabf-21b4d0f8b903_1280_720_base.png Ohm's law Ohm's Law is V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law allows you to determine characteristics of a circuit, such as how much current is flowing through it, if you know the voltage of the battery in the circuit and how much resistance is in the circuit. https://cdn.kastatic.org/ka-youtube-converted/F_vLWkkOETI.mp4/F_vLWkkOETI.mp4 587 Resistance https://www.khanacademy.org/science/in-in-class10th-physics/in-in-electricity/in-in-circuits-ohms-law-resistance/v/solved-example-ohms-law 2020-06-23T07:22:41Z Solved example: Ohms law Let's solve a couple of numerical on Ohm's law.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/q8KaSRrlNDJFnxUUcQoz8GIHG7XMkbHqcnuSqJ4q4HmoHf2s3Zov5nph9Z03ii2dppyixl2SgXZWAulHGg4HcwM Solved example: Ohms law Let's solve a couple of numerical on Ohm's law.  https://cdn.kastatic.org/ka-youtube-converted/CSRqe676NAs.mp4/CSRqe676NAs.mp4 337 Resistance https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-circuits/x0e2f5a2c:compound-circuits/v/ee-series-resistors 2021-03-01T15:43:22Z Series resistors Resistors connected head-to-tail are in series. The equivalent overall resistance is the sum of the individual resistance values. Willy McAllister video https://cdn.kastatic.org/googleusercontent/Kmnq8z0uwC3F3vonbIgz2lNKaTZG5OmKTcDF5sB4HphmUopJgL5EdyPIGwAKIzSqiwDrI8z7HBNtw9NyF8RQYHg Series resistors Resistors connected head-to-tail are in series. The equivalent overall resistance is the sum of the individual resistance values. https://cdn.kastatic.org/ka-youtube-converted/P_SELh0dPW0.mp4/P_SELh0dPW0.mp4 717 Resistance https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-circuits/x0e2f5a2c:compound-circuits/v/ee-parallel-resistors-3 2024-06-22T03:34:22.722178841Z Parallel resistors Practice calculating equivalent resistance for resistors in parallel. In the special case where two equal resistors are in parallel, the equivalent resistance is half their value. Parallel resistance is always smaller than the smallest resistor, as it provides multiple current paths, effectively reducing the overall resistance in the circuit. Willy McAllister video https://cdn.kastatic.org/googleusercontent/_yp9Txe7ke6sminM2CJhZcLANlu5MEHXSzLWz3ITfmYqRQ5-WW-Py6vd7SThvMmbRy_A7FrLGYIbQaLnuQim5d4fww Parallel resistors Practice calculating equivalent resistance for resistors in parallel. In the special case where two equal resistors are in parallel, the equivalent resistance is half their value. Parallel resistance is always smaller than the smallest resistor, as it provides multiple current paths, effectively reducing the overall resistance in the circuit. https://cdn.kastatic.org/ka-youtube-converted/S0AJZjt0sEg.mp4/S0AJZjt0sEg.mp4 561 Resistance https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-circuits/x0e2f5a2c:compound-circuits/e/finding-equivalent-resistance 2026-04-08T00:36:09.500768563Z Finding equivalent resistance Let's practice calculating the equivalent resistances of given combinations of resistors. Satrajit exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-circuits/x0e2f5a2c:compound-circuits/e/simplifying-resistor-networks 2026-04-07T23:55:07.30621384Z Simplifying resistor networks Practice problems involving resistors in networks of series and parallel combinations. Satrajit exercise