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The hairdryer has a plastic case so there is no need for an earth wire connection in the plug. Explain why the hairdryer is still safe to use.
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The hairdryer has a plastic case so there is no need for an earth wire connection in the plug.

Explain why the hairdryer is still safe to use.

User Mameesh
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1 Answer

14 votes
gravitational attraction / field strength increases when closer; A light dependent resistor (LDR) can be used as a sensor to detect light intensity.
User Jacek Marchwicki
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