A loop of wire is at the edge of a region of space containing auniform magnetic field B_vec. The plane of the loop isperpendicular to the magnetic field. Now the loop is pulled out ofthis region in such a way that the area A of the coil inside the magnetic field region isdecreasing at the constant rate c. That is, \frac{dA}{dt} = - c, with c > 0.The induced emf in the loop is measuredto be V. What is the magnitude B of the magnetic field that the loop was in?Part BFor the case of a square loop of sidelength L being pulled out of the magneticfield with constant speed v (see the figure), what is the rate of change ofarea c = -\frac{da}{dt}?