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31 Oct 2021
Given information
It is given that the aluminum wire is 10.0 m long and its diameter is 2.2 mm, whereas the length of copper wire is 24.0 m and diameter is 1.8 mm. It is also known that the resistivity of aluminum and copper are respectively and
Step-by-step explanation
Step 1.
Area with diameter, d
The resistance (R) of a resistor is related with the resistivity of it’s material (ρ), it’s length (l) and the cross-sectional area (A) as,
Where, d is the diameter of the resistor.
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