This test has a 120 minute time limit and will automatically close at 12.00 am o

Question

This test has a 120 minute time limit and will automatically close at 12.00 am on the due date. Please plan accordingly You are free to use your notes a may access the internet to open your textbook nd book, but are not allowed the internet or other people.You D | Question 46 1 pts A wire carries 3.7 A of current. A second wire is placed parallel to the first 8.0 cm away. What is the current flowing through the second wire if the magnitude of the wires is zero at a distance 3.4 cm from the first wire. O 11 A 5.0A O 5.7A O 3.7A Next " Previous Not saved Submit Quiz MacBook Pro

Explanation / Answer

Magnetic field due to a current carrying conductor is given by

B = (u_o I) /(2 pi r)

So, (u_o I1) /(2 pi x 3.4) = (u_0 I2) /(2 pi (8 - 3.4))

I2 = 3.7 x (8 - 3.4)/3.4 = 5.00 A

Correct answer is option (B)

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