← All lessons
🔬 Science - Class 9
Unit 11 · Electricity

Combination of Resistors Presentation

ScienceSubject
8 minEstimated read
Slide 1 of 4
Science and Technology, Class 9 · Electricity

Combination of Resistors

Series · Parallel · Total resistance

By the end you can

🔗

Recognise series and parallel combinations

🧮

Derive the total resistance formula for each

⚡

Calculate the current in each

🏠

Say where each is used

Activity 11.5: Two Bulbs, Two Circuits

1
Join the bulbs one after another (circuit A)
2
Join the bulbs on separate paths (circuit B)
3
Measure V and I in both and fill the table
4
Add a bulb and watch the brightness

7 more slides are waiting

The notes are free to read in full.

Create free account Sign in

Presenter notes: Today we find out what happens when several resistors are joined together, and why festival light strings and house wiring are joined in different ways.