Magnetic Fields · CAPE Physics Unit 2

42 past-paper questions on Magnetic Fields, part of Electricity and Magnetism, from every CAPE Physics Unit 2 paper on Quelpr.

1. 2(a)(ii)1 mark· CAPE Physics Unit 2 · 2003 · Paper 1Define the Tesla.
2. 2(a)(i)1 mark· CAPE Physics Unit 2 · 2004 · Paper 1Write down an expression for the magnetic field at a distance r metres from a long straight wire carrying a current of I amperes.
3. 2(a)(ii)1 mark· CAPE Physics Unit 2 · 2004 · Paper 1State the shape formed by the magnetic field lines around a long straight current-carrying wire.
4. 2(a)(iii)4 marks· CAPE Physics Unit 2 · 2004 · Paper 1On Figure 2a, sketch the resultant magnetic field lines due to the interaction of the Earth's magnetic field and that of the wire, and indicate with an X the region where the resultant magnetic field is zero.
5. 5(a)(i)2 marks· CAPE Physics Unit 2 · 2006 · Paper 2Define 'magnetic flux density' and the 'tesla'.
6. 5(a)(ii)3 marks· CAPE Physics Unit 2 · 2006 · Paper 2Sketch the magnetic flux pattern due to a long straight wire carrying a current, and state the formula for the flux density, B, at a distance, r, from the wire.
7. 5(c)(i)3 marks· CAPE Physics Unit 2 · 2006 · Paper 2Calculate the minimum number of turns per unit length that must be used.
8. 5(c)(ii)3 marks· CAPE Physics Unit 2 · 2006 · Paper 2Calculate the total length of wire required.
9. Q121 mark · multiple choice· CAPE Physics Unit 2 · 2007 · Paper 1The force acting per unit current length is the
10. 1(b)5 marks· CAPE Physics Unit 2 · 2007 · Paper 2Using the experimental data in Table 1 for a current of 0.94 A, plot a graph showing the variation of magnetic flux density B along the axis of the solenoid against distance x from the centre on the provided grid.
11. 1(c)(i)1 mark· CAPE Physics Unit 2 · 2007 · Paper 2State what conclusions can be drawn about the region over which the formula B = μ₀ n I is valid.
12. 1(c)(ii)1 mark· CAPE Physics Unit 2 · 2007 · Paper 2State what conclusion can be drawn about the magnetic field strength at the end of the solenoid.
13. 1(d)2 marks· CAPE Physics Unit 2 · 2007 · Paper 2Use the formula to calculate the total number of turns of wire in the solenoid.
14. Q111 mark · multiple choice· CAPE Physics Unit 2 · 2007 (Specimen) · Paper 1A hollow solenoid has 100\text{ turns} in a length of 0.5\text{ m}. If a steady current of 2\text{ A} flows in the solenoid as shown in the diagram, what is the magnitude and direction of the flux density in the…
15. Q121 mark · multiple choice· CAPE Physics Unit 2 · 2008 (Rest of Region) · Paper 1Which of the following sketches correctly shows the magnetic field due to the flat circular coil carrying a current in the direction shown?
16. Q131 mark · multiple choice· CAPE Physics Unit 2 · 2008 (Rest of Region) · Paper 1A current flows in a conductor from East to West. The direction of the magnetic field at a point above the conductor is
17. Q131 mark · multiple choice· CAPE Physics Unit 2 · 2008 (T&T) · Paper 1Item 13 refers to the following diagram which shows a square with vertices P, Q, R, S. Two long wires at vertices Q and S carry the same current, I, perpendicular to the plane of the paper, in the directions…
18. 1(a)(ii)1 mark· CAPE Physics Unit 2 · 2008 (T&T) · Paper 2How is the unit of magnetic flux density related to the tesla?
19. Q101 mark · multiple choice· CAPE Physics Unit 2 · 2009 · Paper 1Item 10 refers to the diagram below which shows a long air coil solenoid carrying a current, I, with a flux density of 40\text{ }\mu\text{T} along its centre line. If the solenoid is compressed so that its length,…
20. Q121 mark · multiple choice· CAPE Physics Unit 2 · 2009 · Paper 1A road is 15\text{ m} below a transmission line which carries an alternating current of peak value 100\text{ A}. The magnitude of the magnetic flux density at the road (due to the current in the transmission line) is
21. 4(a)(i)2 marks· CAPE Physics Unit 2 · 2009 · Paper 2Distinguish between 'magnetic flux density' and 'magnetic flux'.
22. 4(b)(ii)a)2 marks· CAPE Physics Unit 2 · 2009 · Paper 2Calculate the magnetic field within the solenoid.
23. Q101 mark · multiple choice· CAPE Physics Unit 2 · 2010 · Paper 1A flat circular coil with 150 turns has a radius of 4.0\text{ cm}. When a current of 3.0\text{ A} is passed through the coil, the magnetic field strength at the centre of the coil is
24. Q131 mark · multiple choice· CAPE Physics Unit 2 · 2010 · Paper 1The unit of magnetic flux density is
25. Q131 mark · multiple choice· CAPE Physics Unit 2 · 2011 · Paper 1A road is 15\text{ m} below a transmission line which carries an alternating current of peak value 100\text{ A}. The magnitude of the peak magnetic flux density at the road (due to the current in the transmission…
26. 1(a)2 marks· CAPE Physics Unit 2 · 2011 · Paper 2Define magnetic flux density, B, in terms of the force on a current-carrying wire.
27. Q101 mark · multiple choice· CAPE Physics Unit 2 · 2012 · Paper 1Which of the following units is equivalent to the tesla?
28. 1(a)(ii)1 mark· CAPE Physics Unit 2 · 2012 · Paper 2Show, on the provided diagram of poles N and S with wire AB, the magnetic field lines when current flows in AB.
29. Q131 mark · multiple choice· CAPE Physics Unit 2 · 2013 · Paper 1A road is 15\text{ m} below a transmission line which carries an alternating current of peak value 100\text{ A}. The magnitude of the peak magnetic flux density at the road (due to the current in the transmission…
30. 4(b)(i)3 marks· CAPE Physics Unit 2 · 2013 · Paper 2Calculate the magnitude and direction of the magnetic field inside the solenoid.
31. Q81 mark · multiple choice· CAPE Physics Unit 2 · 2014 · Paper 1Which of the following units is equivalent to the tesla?
32. Q141 mark · multiple choice· CAPE Physics Unit 2 · 2014 · Paper 1What is the magnetic flux density at the end of a solenoid, given that the number of turns is 12 and the current passing is 3\text{ A}? (Assume \mu_0 = 4\pi \times 10^{-7}\text{ H m}^{-1}.)
33. Q141 mark · multiple choice· CAPE Physics Unit 2 · 2015 · Paper 1Which of the following diagrams BEST illustrates the magnetic flux pattern due to a current in a solenoid?
34. 4(a)3 marks· CAPE Physics Unit 2 · 2015 · Paper 2By using the formula F = BIL\sin\theta, define FULLY the unit of magnetic flux density, the tesla.
35. 4(c)(i)2 marks· CAPE Physics Unit 2 · 2015 · Paper 2Calculate the value of the magnetic field at B due to the current in A.
36. 4(d)3 marks· CAPE Physics Unit 2 · 2015 · Paper 2The calculations carried out in (c)(i) and (c)(ii) ignore the effect of the insulating plastic sheath in which the copper conductors are encased. Deduce the effect that the plastic sheath would have on the magnetic…
37. Q121 mark · multiple choice· CAPE Physics Unit 2 · 2016 · Paper 1The magnetic flux density at Point A is
38. Q141 mark · multiple choice· CAPE Physics Unit 2 · 2017 · Paper 1Which of the following diagrams BEST illustrates the magnetic flux pattern due to a current in a solenoid?
39. Q101 mark · multiple choice· CAPE Physics Unit 2 · 2019 · Paper 1What is the magnetic flux density at the centre of a long solenoid, given that the number of turns per unit length is 12\text{ turns per centimetre} and the current passing is 3\text{ A}? (Assume…
40. Q141 mark · multiple choice· CAPE Physics Unit 2 · 2019 · Paper 1Which of the following diagrams correctly illustrates the magnetic flux pattern due to a current in a solenoid?
41. 1(a)2 marks· Physics · Unit 2 Q1 1(a)Define the term 'magnetic flux density'.
42. 1(c)2 marks· Physics · Unit 2 Q1 1(c)On Figure 1, sketch the pattern of the magnetic field around the conductor in the plane normal to the axis of the conductor.