(a)[1]
Describe how the student uses the apparatus in Fig. 5.1 to collect a range of ammeter and voltmeter readings.
(b(i))[2]
State Ohm’s law in words.
(b(ii))[1]
From the results in Table 5.1, show that the resistor obeys Ohm’s law.
(b(iii))[1]
The student has an ammeter with five ranges marked: $0$-$10\,\text{A}$, $0$-$200\,\text{mA}$, $0$-$20\,\text{mA}$, $0$-$2\,\text{mA}$, $0$-$0.2\,\text{mA}$. Suggest how the student should make best use of the different ranges during the investigation.