Question 85
In this task, you will measure current in circuits when components are added and removed.
Work in groups.
You will need (for each group):
- 3 cells, 3 lamps, an ammeter, wires, a switch
Safety
You must avoid damage to components where possible.
Follow these rules.
- Do not remove all the lamps from a circuit, leaving only the cells.
- Do not connect an ammeter directly to cells without lamps.
- If a lamp appears too bright, switch off immediately.
Part 1
1 Build this circuit.
2 Close the switch and record the current.
3 Add another lamp.
4 Record the current with two lamps.
5 Repeat with three lamps.
Work in groups.
You will need (for each group):
- 3 cells, 3 lamps, an ammeter, wires, a switch
Safety
You must avoid damage to components where possible.
Follow these rules.
- Do not remove all the lamps from a circuit, leaving only the cells.
- Do not connect an ammeter directly to cells without lamps.
- If a lamp appears too bright, switch off immediately.
Part 1
1 Build this circuit.
2 Close the switch and record the current.
3 Add another lamp.
4 Record the current with two lamps.
5 Repeat with three lamps.
