Mains electricity in the UK has what values?
Answer and explanation
Correct answer: C. 230 V and 50 Hz alternating current
- Step 1: UK mains is a.c.
- Step 2: Its nominal values are 230 V and 50 Hz.
Answer
230 V and 50 Hz alternating current.
Why not the others: 110 V and 60 Hz direct current: these are not UK mains values. 230 V and 50 Hz direct current: mains is alternating. 12 V and 50 Hz alternating current: the voltage is wrong.
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