The circuit symbol for a voltmeter is a circle containing the letter 'V'. The symbol for a fixed resistor is a simple rectangle.
Which pair of circuit symbols is also one involving a circle followed by one involving a rectangle?
a switch and a capacitor
a motor and a variable resistor
a cell and a fuse
a diode and a 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.