Physics P2 5.6 Electrical issues.

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Created by: Atlanta and Jacob
Created on: 14-10-16 21:29

How are electrical faults dangerous?

Because they can cause electric shocks and fires.

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What may cause an electrical fault?

Electrical faults may occur as a result of damage to sockets, plugs, cables or appliances.

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Why should electrical equipment be checked regularly?

For wear so that worn or damaged items can be replaced or repaired by a qualified electrician to prevent electrical faults.

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Why should you avoid overloading sockets?

It may cause overheating and be a fire risk.

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What should be considered when buying an electrical appliance?

The power, efficiency rating and the cost of the appliance.

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What is the difference between filament bulbs and halogen bulbs and low-energy bulbs?

Filament bulbs and halogen bulbs are much less efficient than low-energy bulbs and do not last as long, there are a number of different low-energy bulbs available.

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For safety reasons, what should you never do when using electrical appliances?

You should never touch mains appliance (or plug or socket) with wet hands or use an electrical appliance in a bathroom, and never tough a bare wire or a terminal at a potential of more than 30 V.

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Why can two-core cable be used for a hairdryer?

The case of the hairdryer is plastic, so it doesn't need an earth.

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Why are filament bulbs very inefficient?

They transfer a lot of energy by heating, rather than as light.

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**IN THE EXAM YOU MAY HAVE TO IDENTIFY THE BEST APPLIANCE TO USE IN A PARTICULAR SITUATION FROM INFORMATION GIVEN IN A QUESTION**

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Other cards in this set

Card 2

Front

What may cause an electrical fault?

Back

Electrical faults may occur as a result of damage to sockets, plugs, cables or appliances.

Card 3

Front

Why should electrical equipment be checked regularly?

Back

Card 4

Front

Why should you avoid overloading sockets?

Back

Card 5

Front

What should be considered when buying an electrical appliance?

Back

View more cards

Get Revising

Physics P2 5.6 Electrical issues.