A copper loop with resistance R = 0.5Q and an area of 50cm2 is fully immersed in a uniform magnetic field BL. O.0 @ O copper loop /00 O\\\\06 Ol 0 |6 O & 0O 6 0 (a) You want to introduce a counterclockwise current of 5A for a time At = 1s. By how much do you need to change the magnetic field? (b) Does B have to increase or decrease to induce such a current? (c) Now assume a constant magnetic field strength. Describe in words what else you could do to induce a counterclockwise current in this copper loop. Give one example. Be as detailed and descriptive as possible for full credit