To determine the electrical power dissipated by a heating element, a student measures the current flowing through it and the potential difference across it.
How should the ammeter and the voltmeter be connected to the heating element?
Both the ammeter and the voltmeter must be connected in series with the heating element.
Both the ammeter and the voltmeter must be connected in parallel with the heating element.
The ammeter must be connected in series with the heating element, and the voltmeter must be connected in parallel with the heating element.
The ammeter must be connected in parallel with the heating element, and the voltmeter must be connected in series with the heating element.
136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.