# Electricity - Multiple choice questions

Multiple choice questions appear in both exam papers, and at both Tiers. Multiple choice questions are asked as questions, often starting with 'What is …' or 'Which of these …'.

You have four options to choose from in a multiple choice question. You must only choose one of these options, by writing your answer (A, B, C, or D) in a box.

It may help to reject any answers that you feel are obviously wrong, so that you can focus on choosing the right answer.

## Sample question 1 - Foundation

Question

Which of these symbols is used to show an LDR? [1 marks]

OCR Gateway Science, GCE Physics, Paper J249, 2016.

D

## Sample question 2 - Foundation

Question

2.0 A flows through a 0.5 Ω resistor.

What is the potential difference across the resistor? [1 mark]

A 4.0 V 1.5 V 1.0 V 0.25 V

This question has been written by a Bitesize consultant as a suggestion to the type of question that may appear in an exam paper.

A B 4.0 V 1.5 V 1.0 V ✔ 0.25 V

## Sample question 3 - Higher

Question

The current in a 12 Ω resistor is 9.0 A.

How much power is dissipated? [1 mark]

A 108 W 972 W 1,296 W 11,664 W

OCR Gateway Science, GCE Physics, Paper J249, 2016 - Higher.

A B 108 W 972 W ✔ 1,296 W 11,664 W

## Sample question 4 - Higher

Question

The diagram shows a resistor R connected in parallel with two lamps.

What is the power dissipated by resistor R? [1 mark]

A 30 W 15 W 12 W 3 W

OCR Gateway Science, GCE Physics, Paper J249, 2016 - Higher.

A B 30 W 15 W 12 W 3 W ✔