In the circuits shown above, a battery with a voltage ?V bat is connected to the
ID: 2303431 • Letter: I
Question
In the circuits shown above, a battery with a voltage ?Vbat is connected to the circuit with resistances R1, R2, and R3, and a switch connected to R3. In the circuit on the left, the switch is open and in the circuit on the right the switch is closed.
For which circuit, if either, will the voltage read by the volt meter be largest?
Choose one:
A Switch Closed (Right), because the total current is larger for this circuit
B The voltages are the same because when the switch is closed the resistance increases and the current decreases
C Switch Open (Left), because the battery voltage is larger for this circuit
D The voltages are the same because when the switch is closed the resistance decreaseas and the current increases
E Switch Closed (Right), because the total resistance is larger for this circuit
F Switch Open (Left), because the current is the same in both circuits and the resistance connected to the voltmeter is larger for this circuit
G Switch Open (Left), because the total current is larger for this circuit
H Switch Open (Left), because the total resistance is larger for this circuit
I Switch Open (Left), because the current is the same in both circuits and the resistance connected to the voltmeter is larger for this circuit
J Switch Closed (Right), because the battery voltage is larger for this circuit
K The voltages are the same because R2 and R3 are in parallel
Explanation / Answer
H Switch Open (Left), because the total resistance is larger for this circuit
Larger resistance less current increases Vab