GCSE Physics Revision notes 2020/2021 - S-cool

k kilo x 1,000 1kg = 1,000g c centi ÷ 100 1cm = 0.01m m milli ÷ 1,000 1ms = 0.001s Mains Supply (AC and DC) We use two main sorts of electrical supplies, DC and AC. DC - This is Direct Current. The current flows in one direction only and has a consistent value. Provided by batteries or DC adaptors/transformers that plug into the mains supply. ................
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