(a)[2]
The student uses one of the $1.5\,\text{V}$ cells in a circuit to find the value of the resistance $R$. In the space below, sketch the circuit diagram.
(b(i))[1]
Explain why the ammeter terminals are coloured differently.
(b(ii))[1]
On your circuit diagram in (a), put the letter B beside the black terminal of the ammeter.
(c(i))[1]
Apart from $1.5\,\text{V}$, name three other voltages that the student could apply in her circuit.
(c(ii))[1]
Sketch the cell arrangement that gives the highest voltage.
(d)[1]
The student repeats her experiment using the largest voltage. State and explain whether this leads to a different value for the resistance $R$.