Modern Inventions

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such appliances abroad.

E. g. :
Look at the right wall. We have a switch there with a note 220 volts. This note shows us . . . voltage.

Is voltage electrical force? - Yes
Is it measured in volts? - Yes

Lets compare two devices: my hair dryer needs 220-240 volts and my husbands electric shaver - 110-220 volts. We can see that they have different . . . operating voltage.
(the operating voltage is the voltage a particular appliance needs to work in a proper way. ) Translate into Russian if theres a necessity.

My husbands electric shaver has a switch which allows him to choose the operating voltage. This switch is called . . . a voltage selector.

Can you use it to change the operating voltage? - Yes

the local power system.
The USA, Japan and European countries use different voltage. 100-127 in America and Japan, 220-240 in European countries. So, these countries have different . . . local power systems.
Translate into Russian if theres a necessity.

My iron doesnt work. Theres a problem with a small thing which is used for connecting the iron to the main supply of electricity. I think we need to change . . . the plug.
(you may show a real one or offer Ss to choose the correct picture on the board. )

My notebook has a different plug. I think I need . . . an adapter.

Can you use it independently, without an electric appliance? - No
Does it help to switch the device on? - Yes
Do you have any adapters at home?

And now please finish the sentence below

When we buy electric appliances abroad . . .

S 1: I think we should know the operating voltage.
S 2: We should know if it needs an adapter.
. . .

Listen to the

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