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Friday 9 October · Optional recall check
Can you still spot the complete circuit?
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Step 1 of 3Find the complete circuit
check
Find the complete circuit
Start with what you remember. There is no new lesson before this check.
0 complete paths. Lamp A is off. Source current 0 amperes.
- Path
- 0 complete paths
- Source current
- 0 A
- Equivalent resistance
- Not shown — open circuit
- Lamp A
- OFF · 0 A · 0 W
- Lamp B
- · ·
0 complete paths. Lamp A is off. Source current 0 amperes.
- Path
- 0 complete paths
- Source current
- 0 A
- Equivalent resistance
- Not shown — open circuit
- Lamp A
- OFF · 0 A · 0 W
- Lamp B
- · ·
check
Open the series switch
Predict the result from the connections shown.
1 complete path. Lamp A is on; Lamp B is on. Source current 0.5 amperes.
- Path
- 1 complete path
- Source current
- 0.5 A
- Equivalent resistance
- 24 Ω
- Lamp A
- ON · 0.5 A · 3 W
- Lamp B
- ON · 0.5 A · 3 W
1 complete path. Lamp A is on. Source current 1 amperes.
- Path
- 1 complete path
- Source current
- 1 A
- Equivalent resistance
- 12 Ω
- Lamp A
- ON · 1 A · 12 W
- Lamp B
- · ·
check
Find the remaining branch
Branch B is about to open. Select the result and its reason.
2 complete paths. Lamp A is on; Lamp B is on. Source current 2 amperes.
- Path
- 2 complete paths
- Source current
- 2 A
- Equivalent resistance
- 6 Ω
- Lamp A
- ON · 1 A · 12 W
- Lamp B
- ON · 1 A · 12 W
2 complete paths. Lamp A is on; Lamp B is on. Source current 2 amperes.
- Path
- 2 complete paths
- Source current
- 2 A
- Equivalent resistance
- 6 Ω
- Lamp A
- ON · 1 A · 12 W
- Lamp B
- ON · 1 A · 12 W
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