Physics, 04.03.2020 23:11 snurpeisov
You are given a copper bar of dimensions 3 cm × 5 cm × 8 cm and asked to attach leads to it in order to make a resistor. If you want to achieve the smallest possible resistance, you should attach the leads to the opposite faces that measure.
A) 3 cm × 5 cm.
B) 3 cm × 8 cm.
C) 5 cm × 8 cm.
D) Any pair of faces produces the same resistance.
Answers: 3
have the highest cross-sectional area combination of 
. 
Electrons have alarger area to flow through.
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