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WalesElectronicsQuick questions
Component 1: Switching circuits
Quick questions on Comparators and interfacing - WJEC GCSE Electronics (4)
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is not checking the data sheet?Show answer
Components must be chosen within their current and voltage limits using the data sheet.
What is q1?Show answer
State the condition for a comparator output to be high, in terms of its two inputs. [1 mark]
What is q2?Show answer
State one advantage of using a relay rather than a transistor alone to switch a mains load. [1 mark]
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