◈ Oracle Prep Sign Up Free

O-LevelPhysicsMagnetism5054/12 · May/June 2014 · Q351 Mark

A relay is used in a circuit containing a bell. How can the apparatus be altered to make the sound of the bell louder?

Diagram for this question, from the exam paper

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aincrease the number of turns on coil T

Bincrease the voltage of battery P

Cincrease the voltage of battery Q

Dmove the coil closer to switch S

✓ Correct answer

C: increase the voltage of battery Q

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Magnetism and see which topics are most likely to come up next.

Sign up free →

About this question

Topic: Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2014 Paper 1 Variant 2, question 35.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Physics questions

MagnetismMay/June 20121m

Why is a transformer used to connect a generator in a power station to a long-distance transmission line?

MagnetismMay/June 20131m

A teacher sticks a magnet to the top surface of a match-box cover. The bottom surface is placed in a small tray of ir…

MagnetismMay/June 20131m

The diagrams show a small compass close to a strong bar magnet. Which diagram shows the correct compass direction?

ElectricityMay/June 20111m

The diagram shows a circuit. The lamp is a 12W lamp and is working at normal brightness. What are the readings on the…

ElectricityMay/June 20111m

A lamp rated 6 V, 2A is switched on for 60 s. How much energy is used?

ElectricityMay/June 20111m

An alternating voltage of frequency 0.5 Hz is applied to the Y-plates of a cathode-ray oscilloscope (c.r.o.). The dia…

← Browse all past-paper questions