An electrical circuit is set up as shown in the diagram.
The fixed resistor has a resistance of 16.0 Ω16.0\ \Omega16.0 Ω and the lamp has a resistance of 8.0 Ω8.0\ \Omega8.0 Ω, so that the total resistance in the circuit when the switch is open is 24.0 Ω24.0\ \Omega24.0 Ω.
Calculate the current in the circuit when the switch is open.
Current = _________________ A
State the potential difference across the resistor when the switch is open.
Potential difference = _________________ V
The switch is now closed.
Describe how the current through the resistor changes. Explain your answer.
Describe how the potential difference across the resistor changes. Explain your answer.
State the potential difference across the lamp when the switch is closed.
Potential difference = _________________ V