# An arc of wire forms a quarter circle whose radius is R relative to the origin....

An arc of wire forms a quarter circle whose radius is R relative to the origin. The wire has a current I going in the counter-clockwise direction. What is the direction of the magnetic field at the origin? I R - Zero Away from the Wire Towards the Wire Into Page Out of Page
A triangular coil of wire with a height of 0.10 m, base length of 0.05 m, and 200 turns has a current of 0.15 A going clockwise through it. It is placed in an external magnetic field directed to the right with a magnitude of 0.50 T. Find the direction of the net torque acting on the loop. 0.151 0.1 m O 0.50 T 0.05 m Out of the Page Down Right Left Up Into the Page

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