Which of the following symbols represents a lamp?
Tick (✓) one box.
Which of the following is needed in a circuit for charge to flow?
Tick (✓) two boxes.
A source of resistance | |
A closed circuit loop | |
A source of potential difference | |
An ammeter | |
A variable resistor | |
A lamp |
Choose the correct equation linking potential difference, current, and resistance.
Tick (✓) one box.
Figure 1 shows a simple circuit.
Figure 1
Calculate the resistance of the bulb.
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