Give full notes of Domestic Electric Circuits (Class 10)​

Answers (1)

S.no

Terms

Descriptions

1

Type of current/Potential Difference and Frequency

We use AC with an electric potential difference  of 220 V with a frequency of 50 Hz.

2

Live Wire

The wire with red insulation cover is called live wire or positive wire.

3

Neutral Wire

Neutral wire always has black insulation. It is also termed as negative. As mentioned above, the potential difference In our country is 220 V, it means that the potential difference between the Live wire and Neutral Wire is 220 V.

4

Earth Wire

Earth wire  has green insulation and this wire is connected to a metallic body deep inside earth. Main importance of this is that it is used as a safety measure to ensure that if there is any leakage of current to a metallic body then it does not give any severe shock to a user.

5

Appliance circuit

a) Each appliance in the house has a separate switch to ‘ON’/‘OFF’ the appliance which is actually ‘ON’/‘OFF’ the flow of current through it.

b) Each appliance in the house has equal potential difference it means that they are connected parallel to each other, this is because - If we switch off one appliance then all the appliances should keep working.

6

Electric Fuse

a) A fuse in a circuit is a very important part of an electrical circuit because it prevents damage to the electrical appliances and the circuit due to overloading and this overloading can cause extreme heat and will cause fire in the home.

b) Electric fuse always prevents the electric circuit as well as the appliance from a possible damage. It is because it stops the unduly high electric current.

c) Generally, Tin-lead alloy is used to make fuse wire

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