Using the same method as in (a), the student determines the resistance R1 of the resistance
wire AB of total length l = 0.500 m.
R1 =
She then uses a short lead to connect points B and D. She uses the same method again
to determine the combined resistance R2 of the resistance wires AB and CD connected
together.
R2 =
Use the student’s results to compare the resistance R1 of wire AB with the resistance R2 of
wires AB and CD connected together.
Tick the box next to the description that most closely matches the results.