DP Physics (first assessment 2025)

Question EXE.2.SL.TZ0.16b

Date	Example questions Example questions	Marks available	[Maximum mark: 3]	Reference code	EXE.2.SL.TZ0.16b
Level	SL	Paper	2	Time zone	TZ0
Command term	Discuss	Question number	b	Adapted from	N/A

[Maximum mark: 3]

EXE.2.SL.TZ0.16b

(b)

The magnetic field strength of Earth’s field at the location of the wires is 45 μT.

Discuss the assumption made in this question.

[3]

Markscheme

Use of $F = B I l$ ✓

$45 \times 10^{- 6} \times 10 \times 0.25 = 1.15 \times 10^{- 4} N$ ✓

Concludes that the assumption is not valid ✓

Syllabus sections