A circular conducting loop with a radius of 0.20 m and a smallgap filled with a

Question

A circular conducting loop with a radius of 0.20 m and a smallgap filled with a 10.0 resistor is oriented in thexy-plane. If a magnetic field of 2.0T, making an angle of 30degreewith the z-axis, increases to 8.0T, in 2.0s, what is themagnitude of the current that will be caused to flow inthe conductor?
a. 0.25 A b. 0.019 A c. 0.0033 A d. 0.033 A A circular conducting loop with a radius of 0.20 m and a smallgap filled with a 10.0 resistor is oriented in thexy-plane. If a magnetic field of 2.0T, making an angle of 30degreewith the z-axis, increases to 8.0T, in 2.0s, what is themagnitude of the current that will be caused to flow inthe conductor?
a. 0.25 A b. 0.019 A c. 0.0033 A d. 0.033 A

Explanation / Answer

    here we use     = - N (B /t)     B = B A cos     B = 8.0 T - 2.0 T         = 6.0 T     A = r2         = (3.14) (0.20m)2         = ........m2     = 6 (A) cos30o / 2     I = / R       = ......... A     (d) will be the correct option

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