APFIVE Parallel Circuit with a Switch
A student builds a circuit with a battery, two resistors in parallel, and a switch that can connect a third resistor in parallel. When analyzing the circuit with the switch open versus closed, which statement is correct?
A
Only the configuration with the switch closed is a closed circuit
B
The switch position has no effect on whether the circuit is closed
C
Opening the switch creates an open circuit in all branches
D
Both configurations represent closed circuits with different equivalent resistances
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