DP Physics (last assessment 2024)
Question 22N.2.SL.TZ0.c.ii
| Date | November 2022 | Marks available | [Maximum mark: 1] | Reference code | 22N.2.SL.TZ0.c.ii |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Describe | Question number | c.ii | Adapted from | N/A |
c.ii.
[Maximum mark: 1]
22N.2.SL.TZ0.c.ii
Resistor R is connected in a circuit with a cell that has internal resistance.
The ammeter and the voltmeter are ideal.
One of the connecting wires is placed in a magnetic field. The direction of the current in the wire is shown.
Every current-carrying wire produces a magnetic field.
Describe one piece of evidence that supports this statement.
[1]
Markscheme
magnetic needle is deflected by nearby currents
OR
two «parallel» current-carrying wires exert a force on each other
OR
magnetic field due to a current can be measured directly with a probe ✓
Only accept argument that refers to an observation or experiment.
Examiners report
Students usually failed to identify appropriate evidence.
