Question

How to make an electric switch ?

Answer 1

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How to make an electric switch?

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The basic circuit below has a switch made using a small piece of paper and 2 paper clips to break the flow of electricity which allows the bulb to be turned on and off.

Material needed

PVC is widely used to insulate electric wiring, while thermosets (which can withstand high temperatures) are used for switches, light fittings and handles.

Instructions

• Cut out a small rectangle shape from the paper and attach a paperclip to each end.
• Set up your circuit like the one below.
• You should find the bulb only lights up when the paperclips touch.
• This is because the metal paperclips do conduct electricity but the paper does not.
• Metals are good conductors of electricity , so wires are made from copper, which has the added advantage that it can be stretched thin without breaking.
• The wires you use are covered in a coat of plastic for safety which does not conduct electricity.

Hope it helps you dear

Answer 2

Explanation:

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• Cut out a small rectangle shape from the paper and attach a paperclip to each end.

• Set up your circuit like the one below. You should find the bulb only lights up when the paperclips touch. This is because the metal paperclips do conduct electricity but the paper does not.

• Metals are good conductors of electricity , so wires are made from copper, which has the added advantage that it can be stretched thin without breaking. The wires you use are covered in a coat of plastic for safety which does not conduct electricity.