plumiElectromagnetic effects: CAIE IGCSE Physics questions
Every CAIE IGCSE Physics exam question on 4.5 Electromagnetic effects, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Calculations
Q8(b)(ii)
The whole paper ↗![June 2024 Paper 3, question 8(b)(ii): State the name of the pole labelled X on the core of the electromagnet. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-08-bii-qp.webp)
Q9(b)(i)
The whole paper ↗![June 2024 Paper 3, question 9(b)(i): Calculate the output voltage Vs of the secondary coil. secondary coil output voltage Vs = V [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-09-bi-qp.webp)
Q12(a)
The whole paper ↗![Specimen Paper 4, question 12(a): Calculate the number of turns in the secondary coil. number of turns = [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062504-spec-12-a-qp.webp)
Q12(b)
The whole paper ↗![Specimen Paper 4, question 12(b): The current in the lamp is 2.0 A. The transformer operates with 100% efficiency. Calculate the current in the primary circuit. current = [2] [Total: 4]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062504-spec-12-b-qp.webp)
All 18 questions on Electromagnetic effects, as a list
- June 2024, Paper 1, Q30 (1 mark): A student moves a magnet into a coil, as shown. The voltmeter measures the magnitude of the electromotive force (e.m.f.) induced in the coil. coil S N magnet V
- June 2024, Paper 1, Q31 (1 mark): A student makes a small d.c. motor. The teacher supplies the following equipment. ● battery ● ammeter ● voltmeter ● coil of wire ● magnets ● resistor The studen
- June 2024, Paper 2, Q28 (1 mark): When a conductor in a complete circuit cuts across a magnetic field, a current is induced in the conductor. Which statement about the induced current is correct
- June 2024, Paper 2, Q29 (1 mark): The diagram shows a solenoid carrying an electric current. X Y Z Which row compares the strength of the magnetic field due to the solenoid at points Y and Z wit
- June 2024, Paper 2, Q30 (1 mark): A conducting wire is placed between the poles of a magnet. When an electric current in the wire is in the direction shown, then the force on the wire acts out o
- June 2024, Paper 2, Q31 (1 mark): Which types of electric current are in the primary coil and the secondary coil of a step-up transformer? primary secondary coil coil A a.c. a.c. B a.c. d.c. C d
- June 2024, Paper 3, Q8(b)(ii) (1 mark): State the name of the pole labelled X on the core of the electromagnet. [1]
- June 2024, Paper 3, Q9(b)(i) (3 marks): Calculate the output voltage Vs of the secondary coil. secondary coil output voltage Vs = V [3]
- Specimen, Paper 1, Q33 (1 mark): An electric current can produce a heating effect and a magnetic effect. Which row shows the effect that a relay uses and one application of a relay? effect used
- Specimen, Paper 1, Q34 (1 mark): The diagram shows a bar magnet and a coil of wire. The bar magnet is moved at the same speed in each experiment. In which situation is the largest electromotive
- Specimen, Paper 1, Q35 (1 mark): The diagram shows a simple transformer with an input of 240 V a.c. and an output of 40 V a.c. There are 600 turns on the primary coil. primary coil secondary co
- Specimen, Paper 1, Q36 (1 mark): There is an electric current in a straight wire in the direction into the page. This produces a magnetic field around the wire. All the field lines are circles
- Specimen, Paper 2, Q33 (1 mark): An electric current can produce a heating effect and a magnetic effect. Which row shows the effect that a relay uses and one application of a relay? effect used
- Specimen, Paper 2, Q34 (1 mark): The diagram shows a bar magnet and a coil of wire. The bar magnet is moved at the same speed in each experiment. In which situation is the largest electromotive
- Specimen, Paper 2, Q35 (1 mark): Increasing the transmission voltage in transmission cables reduces power losses. What is the explanation for this reduction? A The current decreases, reducing t
- Specimen, Paper 2, Q36 (1 mark): There is an electric current in a straight wire in the direction into the page. This produces a magnetic field around the wire. All the field lines are circles
- Specimen, Paper 4, Q12(a) (2 marks): Calculate the number of turns in the secondary coil. number of turns = [2]
- Specimen, Paper 4, Q12(b) (2 marks): The current in the lamp is 2.0 A. The transformer operates with 100% efficiency. Calculate the current in the primary circuit. current = [2] [Total: 4]
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