DP Physics (first assessment 2025)

Question EXE.2.SL.TZ0.b

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

[Maximum mark: 2]

EXE.2.SL.TZ0.b

Both wires are 7.5 m long and are 0.25 m apart. The current in both wires is 12 A. Determine the force that acts on one wire due to the other.

[2]

Markscheme

$\frac{F}{l} = \frac{2 \times 10^{- 7} I_{A} I_{B}}{r} = \frac{2 \times 10^{- 7} \times 12^{2}}{0.25}$ ✓

$8.6 \times 10^{- 4} N$ ✓

Syllabus sections