Electrical Resistance, Resistors and Ohm's Law

7 lessons

Goal

Define electrical resistance, evaluate resistor properties, and analyse current-voltage characteristics in DC circuits.

Microscopic and Macroscopic Definitions of Resistance

7 lessons

0 of 7 done

Microscopic and Macroscopic Definitions of ResistanceUp next
Ohm's Law and Ohmic versus Non-Ohmic ConductionPremiumNot started yet
Analysing I-V Characteristic Curves of Resistive ElementsNot started yet
Temperature Coefficient of Resistance in Conductors and SemiconductorsNot started yet
Resistor Types: Carbon Film, Metal Film, and WirewoundNot started yet
Current-Limiting and Voltage-Dropping Roles of ResistorsNot started yet
Parasitic Inductance and Capacitance in Practical ResistorsNot started yet

Standards Covered

Curriculum Framework

6 lessons

Interpret and draw standard electronic circuit schematics using BS EN conventions for DC systems.

7 lessons

Define electrical resistance, evaluate resistor properties, and analyse current-voltage characteristics in DC circuits.

8 lessons

Calculate effective resistance, branch currents, and nodal voltages in series, parallel, and ladder resistor networks.

7 lessons

Select appropriate standard resistor values from the E24 series and calculate worst-case circuit limits under component tolerances.

8 lessons

Solve multi-loop and multi-node DC circuits with single power supplies using Kirchhoff's current and voltage laws.

7 lessons

Derive and apply Thévenin equivalent circuits to determine load voltages, currents, and maximum power transfer.

7 lessons

Analyse balanced and out-of-balance Wheatstone bridge circuits for precision measurement and sensor interfacing.