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31 Oct 2021
Given information
It is given that the copper wire of 15 Ω resistance is to be cut in two pieces.
Step-by-step explanation
Step 1.
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
For constant resistivity (ρ), and cross-sectional area (A).
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