a circular conducting loop of radius 0.88 m with 1000 turns is located in a region of homogeneous magnetic field of magnitude 1.8 t pointing perpendicular to the plane of the loop. the loop is connected in series with a resistor of 240 ohm. the magnetic field is then decreased at a constant rate from its initial value to 0.0 t in 3.0 s. calculate the current through the resistor. (in a)