Page 15 - CHAPTER-1 (Electricity)

CHAPTER 1

ELECTRICITY

D. Electric circuit:

• A closed and continuous path through which electric current

flows is known as an electric circuit.

• It has various components including a source of current (say a cell

or battery), a load (say a bulb or any other appliance), a switch/key

(to open or close a circuit), a fuse, all connected through

connecting wires.

• These wires are generally made of copper.

Types of circuit

Open Closed

• When the key is closed, then the circuit is called a closed circuit.

• This means that the current would flow through the circuit to

operate the device.

Fig 7:

• When the key is open, then the circuit is called an open circuit.

• This means that the current would not flow through the circuit.

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