Two striaght wire carrying conventional current I areconnceted by a three-quarte

Question

Two striaght wire carrying conventional current I areconnceted by a three-quarter arc of radius R1 and aone-quarter-circular arc of radius R2. Electric fields are alsopresent in this region, due to charges to charges not shown on thedrawing.    Two arcs and two straight wires An electron is moving down seth speed v as it passes throughthe center C of the arc, and at that instant the net electric andmagnetic force on the electron is zero. (the Earth's mangetic fieldis negligible.) (a) what is he direction of he magnetic field at the center C,due to the current I? Explain briefly. (b) what is the dirction of the electric field at the centerC? Explain your reasoning clearly. (c) what is he magnitude of the magnetic field at at thecenter C, due to the current I? (d) what is the mangitude of the electric field at the centerC? Explain briefly.

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