### What is the current in the diameter section

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##### Reference no: EM13544650

A 3.00- length of copper wire at 20 has a 1.20--long section with diameter 1.8 and a 1.80--long section with diameter 0.90 . There is a current of 2.5 in the 1.8 -diameter section. 1.What is the current in the 0.90 -diameter section? 2.What is the magnitude of in the 1.8 -diameter section? 3.What is the magnitude of in the 0.90 -diameter section? 4.What is the potential difference between the ends of the 3.00-length of wire?

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