A 2-mT magnetic field is initially parallel to a surface with an area of = 2m². If the magnetic field is rotated relative to the surface by 30 degrees, what is the change in the magnetic flux? 2) A leftward uniform magnetic field is perpendicular to a square conducting coil with 4 turns. The magnitude of the magnetic field is increased by 1 mT every second. Find the magnitude and direction of the average induced current if the resistance of the coil is R = 0.20 and the length of a side of the square is 10 cm.