Introduction
Chapter Name : Current Electricity |
Sub Topic Code : 101_12_03_01_01 |
Topic Name : Introduction |
|
Sub Topic Name : Introduction |
|
Introduction
What is a charge? How is electric current used in day-to-day life produced?
Pre-Requisites:
Charge, characters of positive and negative charge, static electricity.
Activity:
Understand how current is produced and experiment with static electricity.
Real Life Question:
Why do you sometimes get a shock on a cold day when you touch metal?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| charge current | Force experienced when two charged pieces of matter are placed nearby. Produced by moving charges. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Balloon , wool | Rub the balloon against the wool and place the charged balloon against the wall. It sticks to the wall. |
Real life uses :
Current is used in power supply, transmission lines, charges in battery and torchlight.
Places to visit :
Science Museum. Watch the lightning from inside the house on the rainy day. It is also electricity.
Practical examples around us
| Examples | Explainations |
|---|---|
| Recently used comb | A comb very recently used attracts tiny bits of paper. |
What you learn in Theory:
Production of electric current using moving charges.
What you learn in Practice:
Answers to various static related real life questions(like hair rising experience, shock in carpet)