Quick questions on Current, voltage, power and resistance: circuits and dividers - SQA Higher 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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Calculate the power dissipated in a

20\ \Omega

resistor carrying a current of

0.50\ \text{A}

. [2 marks]

What is q2?

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Two

10\ \Omega

resistors are connected in parallel. State the total resistance. [1 mark]

What is q3?

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9.0\ \text{V}

supply is across a

300\ \Omega

and a

600\ \Omega

resistor in series. Calculate the voltage across the

600\ \Omega

resistor. [2 marks]

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