DP Physics (last assessment 2024)
Question 22M.2.HL.TZ2.4c.ii
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.HL.TZ2.4c.ii |
| Level | HL | Paper | 2 | Time zone | TZ2 |
| Command term | Comment | Question number | c.ii | Adapted from | N/A |
c.ii.
[Maximum mark: 1]
22M.2.HL.TZ2.4c.ii
A cell is connected to an ideal voltmeter, a switch S and a resistor R. The resistance of R is 4.0 Ω.
When S is open the reading on the voltmeter is 12 V. When S is closed the voltmeter reads 8.0 V.
The voltmeter is used in another circuit that contains two secondary cells.
Cell A has an emf of 10 V and an internal resistance of 1.0 Ω. Cell B has an emf of 4.0 V and an internal resistance of 2.0 Ω.
(c.ii)
Comment on the implications of your answer to (c)(i) for cell B.
[1]
Markscheme
Charge is being driven through the 4.0 V cell OR it is being (re-)charged ✓
