AC/DC

Sarah Collinson
Flashcards by Sarah Collinson, updated more than 1 year ago
Sarah Collinson
Created by Sarah Collinson over 4 years ago
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Description

AS level Physics (GCSE) Flashcards on AC/DC, created by Sarah Collinson on 04/22/2016.

Resource summary

Question Answer
What happens in AC? Alternating current - the current continuously changes direction
What happens in DC? Direct current - the current continues to flow in the same direction
How are the different currents shown on an oscilloscope reading? AC - a wavy line DC - a flat line
Define frequency in AC The number of changes in direction of current per second
What is the frequency of the mains supply? 50 Hz
What is the voltage of the mains supply? 230 V
What is a period on an oscilloscope reading? The time taken for one cycle
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