001 10.0 points A coil is wrapped with 109 turns of wire on the perimeter of a square frame of sides 34 cm. Each turn has the same area, equal to that of the frame, and the total resistance of the coil is 1.52 2. A uniform magnetic field is turned on perpendicular to the plane of the coil. If the field changes linearly from 0 to 1.09 Wb/m in a time of 0.989 s, find the mag- nitude of the induced emf in the coil while the field is changing. Answer in units of V. 007 10.0 points A coin with 90 turns has a radius of 10 cm and resistance of 35 2. At what rate must a perpendicular mag- netic field change to produce a current of 10 A in the coil? Answer in units of T/s. 013 10.0 points A wire, 28 m long, moves at 4.6 m/s perpen- dicularly through a 0.59 T magnetic field. What emf is induced in the wire? Answer in units of V. 014 10.0 points A rod 30 cm long moves in a plane perpendic- ular to a magnetic field of 300 G. The velocity of the rod is perpendicular to its length and the potential difference between the ends is 12 V. Find the speed of the rod. Answer in units of m/s.