THE PIC IS WRONG IT SHOULD BE 10 for both I Problem 20.82 An insulated circular

Question

THE PIC IS WRONG IT SHOULD BE 10 for both I

Problem 20.82 An insulated circular ring of diameter 6.55cm carries a I2 = 13.0 A current and is tangent to a very long, straight insulated wire carrying I1 = 10.0A of current, as shown in the figure (Figure 1). Part A Find the magnitude of the magnetic field at the center of the ring due to this combination of wires. Part B Find the direction of the magnetic field at the center of the ring due to this combination of wires. The field is directed into the page. The field is directed out of the page. The field is directed to the right. The field is directed to the left.

Explanation / Answer

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Bnet = B due to st wire + B due to circular ring

Bnet = uoi/2piR + uoi/(2R)

Bnet = 4pie-7 * 10 /(2pi*0.03275)   + ( 4pie-7 * 10/(2* 0.03275)

Bnet = 8.10 *10^-5 T
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out of the page

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