Quick questions on DC circuits: Kirchhoff's laws, internal resistance and the potential divider - Eduqas A-Level Physics

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 q1?

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State Kirchhoff's first law and the conservation principle behind it. [2 marks]

What is q2?

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Two

6.0\ \Omega

resistors are connected in parallel. Find their combined resistance. [2 marks]

What is q3?

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A cell of electromotive force

1.5\ \text{V}

drives a current of

0.30\ \text{A}

through an internal resistance of

0.40\ \Omega

. Find the terminal potential difference. [2 marks]

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