A student wishes to determine the electrical resistance of a resistor by measuring both the potential difference across the resistor and the current flowing through it.
She has the resistor, a battery, and some connecting wires.
What else does she need?
a voltmeter only
an ammeter only
a voltmeter and an ammeter
a force meter (newton meter) and an ammeter
132 exam-style questions on CIE IGCSE Physics 4.2.4a Resistance. Each one has a worked solution and a mark scheme showing where the marks go.