4) A copper cable has a current of 1200 A running through it. There is a potential difference of 0.016 V between two points on t
he cable that are 0.24 m apart. Calculate the radius of the cable.
1 answer:
Answer: 99×10-3m or 0.99cm
Explanation:
The detailed solution is found in the image attached. We can obtain the resistance from ohms law, V=IR.
Using this value obtained for resistance, we substitute into the equation shown in the solution to find the area of the cable. Afterwards, the radius of the cable can be obtained from its area as shown in the solution.
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