Question text
30 X is a piece of wire with length l, area a and resistance R. Wire Y is made from the same material and is connected to wire X to produce a component with R a total resistance of . 2 What are the dimensions of Y and how is it connected to X? length area connection A 2l 0.25a in parallel B 2l 0.25a in series C 4l 4a in parallel D 4l 4a in series
30 X is a piece of wire with length l, area a and resistance R.
Wire Y is made from the same material and is connected to wire X to produce a component with
R
a total resistance of .
2
What are the dimensions of Y and how is it connected to X?
length area connection
A 2l 0.25a in parallel
B 2l 0.25a in series
C 4l 4a in parallel
D 4l 4a in series
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