DP Physics (first assessment 2025)

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Question 22N.1A.HL.TZ0.33

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1A.HL.TZ0.33
Level HL Paper 1A Time zone TZ0
Command term Question number 33 Adapted from N/A
33.
[Maximum mark: 1]
22N.1A.HL.TZ0.33

A resistor connects two parallel conducting rails a distance d apart. A conducting bar rolls along the rails at a constant velocity v through a uniform magnetic field of 2.0 T perpendicular to the rails as shown.

The voltage V across the resistor is measured.

The graph shows the variation of V with d.

What is v?


A.  0.33 m s−1

B.  3.0 m s−1

C.  6.0 m s−1

D.  12.0 m s−1

[1]

Markscheme

B

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