2.4.66 - Resistance and Ohm’s law

Understand resistance R = V/I and Ohm's law as the special case I ∝ V at constant temperature.

Use - resistance and ohm’s law to connect the rule to the data and decision in the question.

This matters because - resistance and ohm’s law determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - resistance and ohm’s law to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Resistance and Ohm’s law is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.