The force per meter between the two wires of a jumper cable being used to start...

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The force per meter between the two wires of a jumper cable being used to start...

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.25 N/m. What is the current in the wires, given they are separated by 3 cm? You should round your answer to the nearest integer. Do not indicate unit.

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Answer 1

Answer #1

f = mu₀ I₁ I₂ / 2 pi r

0.25 = (4 pi * 10^-7 * I²) / (2 pi * 0.03)

I = sqrt [(0.25 * 2 pi * 0.03) / (4 pi * 10^-7)]

I = 193.6 A

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Answer 2

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