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A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65...

A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65 x 10^(-7) cm

a. Calculate its resistance (For part a. i've seen people multiply by 4 and some not which is the correct way to solve this?)

b. If a 3.85 volt battery is connected to the wire, what current exists in the circuit?

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