DP Physics (first assessment 2025)

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Question EXE.1A.SL.TZ0.17

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.SL.TZ0.17
Level SL Paper 1A Time zone TZ0
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
EXE.1A.SL.TZ0.17

Three current-carrying wires lie in the same plane and carry currents of 6 A, 2 A and 4 A. The currents are all in the same direction.

The 2 A wire is 4 cm from the 4 A wire and 6 cm from the 6 A wire.

What magnetic force per unit length acts on the 2 A wire?


A.  0

B.  40 μN m−1

C.  80 μN m−1

D.  160 μN m−1

[1]

Markscheme

A

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