Download Ranking Task Activity for Terminal Voltage of Ideal Battery

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Transcript
Task
 You
will be shown four different
arrangements of light bulbs connected to
batteries with conducting wires. The
arrangements will vary with their being
between 0 and 4 light bulbs connected in
series. Assume all pieces in the circuit
behave perfectly. A voltmeter will be
used to measure the potential difference
between the terminals of the battery.
V1
V2
V3
V4
Rank the potential difference measured
between the two battery terminals from the
greatest to the least. If there are any ties
indicate them.
A.
B.
C.
D.
E.
V1 > V2 > V3 > V4
V4 > V3 > V2 > V1
V1 = V4 > V2 = V3
V2 = V3 > V1 = V4
V1 = V2 = V3 = V4
What was the reason that you
ranked them that way?
A.
B.
C.
D.
E.
The more resistors, the more voltage the battery
supplies
The more resistors the less voltage a battery
supplies
The voltage is used by the first light bulb, then the
next …
Ideal batteries always provide the same voltage
Some other reason
How confident are you about your
answer?
A.
B.
C.
D.
E.
I know I’m right
I’m pretty sure
Neutral
I’m mostly guessing
I’m completely guessing
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