DP Physics (first assessment 2025)

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Question 21M.1A.SL.TZ2.17

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.17
Level SL Paper 1A Time zone TZ2
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
21M.1A.SL.TZ2.17

A circuit contains a variable resistor of maximum resistance R and a fixed resistor, also of resistance R, connected in series. The emf of the battery is 6.0 V and its internal resistance is negligible.

What are the initial and final voltmeter readings when the variable resistor is increased from an initial resistance of zero to a final resistance of R?

[1]

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C

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