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VICPhysicsQuick questions
Unit 1: What ideas explain the physical world?
Quick questions on Series and parallel DC circuits (VCE Physics Unit 1)
4short 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 adding parallel resistors directly?Show answer
$1/R$ values add, not $R$ values.
What is forgetting same-voltage rule in parallel?Show answer
At any parallel node, $V$ is common.
What is mixing series and parallel in mixed circuits?Show answer
Identify the topology first. Two resistors in series across a battery are not in parallel with each other.
What is confusing power and energy?Show answer
A $100$ W device left on for an hour uses $360\,000$ J, not $100$ J.
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