# Electricity and Circuits Class 6 Notes - Chapter 12

According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 9.

## The Electric Cell

### Current

• Current is the flow of particles in a particular direction. For example, air currents that cause winds or water currents.
• When particles flow in an electric circuit to produce electricity, it is called an electric current.

### Electric Current

The flow of electric charges in a circuit is called an electric current. The direction is taken from the positive terminal to the negative terminal of the battery in an external circuit.

Electric Current

### Electric Cell

• A cell is a source of electric power created inside by internal chemical reactions.
• When the chemicals inside the cell are exhausted, the cell needs to be replaced by a new one.
• Cells have two terminals: a positive and a negative terminal. In order for current to flow, the positive terminal must be connected to the negative terminal, and this polarity must be maintained.

Electric Cell

## Bulb Connected to an Electric Cell

### Wire

• An electric wire is a conducting path in an electric circuit through which current flows.
• It is usually made out of a metal that is a good conductor of electricity.

### Electric Bulb, and its Working

• It consists of a thin wire that glows due to the passage of current. This is known as the filament.
• An electric circuit provides a closed path for the current to flow. The terminals of the bulb are connected by wires to the electric cell.
• Sometimes the bulb does not glow as the filament gets fused (breaks) due to overheating.

## An Electric Circuit

### Electric circuit

• A closed-loop path, which the current takes, is known as an electric circuit.
• When the path of the circuit is closed, current flows through it.
• When there is a break in the path (the switch is open), then the circuit is open and not conducting, so the current does not flow.

Circuit Component

## An Electric Switch

### Electric switches

• Devices that are used to connect the circuit or break it.
• When the switch is connected, we call it ON, and when it’s not in contact (or open) with the circuit, the switch is OFF.​​​​​​

Electricity and Circuit – Conductors and Insulators

### Conductors and insulators

• Any material that allows the electric current to pass through it is called the conductor. For example, metals like copper
• Materials that do not allow the free flow of current through them are known as bad conductors or insulators. For example, rubber and plastic

## Frequently Asked Questions on CBSE Class 6 Science Notes Chapter 12 Electricity and Circuits

Q1

### What is the flow of current?

Current flow basically means the flow of electric charges with respect to time.

Q2

### What is an electric cell?

An electric cell is a device which converts chemical energy into electrical energy.

Q3

### Who invented electricity?

Benjamin Franklin had one of the greatest scientific minds of his time. He was interested in many areas of science, and made many discoveries. In the mid-1700s, he became interested in electricity.