Uploaded December 2025 | Updated September 2026, 1 week ago
Technician Exam Questions Part 18
T5D – Ohm’s Law, Series and parallel circuits.
This video, "Ham College 131," focuses on teaching concepts for the amateur radio technician exam. The hosts discuss Ohm's Law and its formulas for calculating current (I = E / R), voltage (E = I * R), and resistance (R = E / I), introducing German physicist Georg Ohm (5:56). They also briefly touch upon the historical context of electricity measurement, including Henry Cavendish's early experiments (6:10).
The video then presents and solves several practice questions applying Ohm's Law to calculate resistance, current, and voltage in circuits (8:59). Towards the end, the hosts differentiate between series and parallel circuits, explaining that in a series circuit, current is the same through all components (28:19), while in a parallel circuit, voltage is the same across all components (29:43). They also briefly explain a voltage divider circuit (31:01).
Technician Exam Questions Part 18
T5D – Ohm’s Law, Series and parallel circuits.
This video, "Ham College 131," focuses on teaching concepts for the amateur radio technician exam. The hosts discuss Ohm's Law and its formulas for calculating current (I = E / R), voltage (E = I * R), and resistance (R = E / I), introducing German physicist Georg Ohm (5:56). They also briefly touch upon the historical context of electricity measurement, including Henry Cavendish's early experiments (6:10).
The video then presents and solves several practice questions applying Ohm's Law to calculate resistance, current, and voltage in circuits (8:59). Towards the end, the hosts differentiate between series and parallel circuits, explaining that in a series circuit, current is the same through all components (28:19), while in a parallel circuit, voltage is the same across all components (29:43). They also briefly explain a voltage divider circuit (31:01).










