Exercise 28.26 A rectangular loop with dimensions 4.20 cm by 9.50 cm carries cur

Question

Exercise 28.26 A rectangular loop with dimensions 4.20 cm by 9.50 cm carries current I. The current in the loop produces a magnetic field at the center of the loop that has magnitude 4.50x10 ST and direction away from you as you view the plane of the loop. Part A What is the magnitude of the current in the loop? Express your answer with the appropriate units. I 0.0113 A Submit My Answers Give up Incorrect; Try Again; 5 attempts remaining Part B What is the direction of the current in the loop? clockwise counterclockwise My Answers. Give Up Correct

Explanation / Answer

magnetic filed is at the center of the rectangular loop is B = [2*mu_o*i/(2*pi)][(1/0.021)+(1/0.0475)]

B = 2*2*10^-7*I*68.67

Given that B = 4.5*10^-5 T

ten Current I = 4.5*10^-5/(68.67*2*
2*10^-7) = 1.63 A

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