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Basic Circuit Concepts
Quick questions on Series and parallel circuits explained: O-Level Electronics Basic Circuit Concepts
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 are series circuits?Show answer
Components in series are connected end to end so there is only one path for the current. The rules are:
What are parallel circuits?Show answer
Components in parallel are connected across the same two points, so the current has more than one path. The rules are:
What is the two-resistor parallel shortcut?Show answer
For exactly two resistors in parallel, the reciprocal rule simplifies to a product-over-sum form:
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