Lesson: Ohm’s Law Physics • 9th Grade

Students will be able to

• recall that ohms are the unit of electrical resistance,
• use in all permutations,
• state how the current through an ohmic conductor varies with potential difference across it,
• state how the current through a filament bulb varies with potential difference across it,
• state how the current through a diode varies with potential difference across it,
• identify an ohmic conductor from a graph of its current and potential difference characteristics,
• state how the resistance of an LDR varies with light incident upon it,
• state how the resistance of a thermistor varies with temperature.