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Physics, 17.07.2020 18:01 ginadesor3461

2/A mains electricity hairdryer has a resistance of 46 Ω and a current of 5 A flows through it when in use. What is the voltage across the hairdryer? (This is the mains voltage in the UK) 3/ What is the voltage across a lamp of resistance 4 Ω if a current of 2.5 A flows through it?

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