A wire and a 10 ohm resistor are used to forma circuit in the shape of a square, 20 cm by 20 cm. A uniform butnon-steady magnetic field is directed into the plane of thecircuit. The magnitude of the magnetic field is decreased from 2.70T to 0.90 T in a time interval of 96 ms. The average inducedcurrent and its direction through the resistor, in this timeinterval, are closest to:
a. 75 mA, from b to a
b. 45 mA, from b to a
c. 45 mA, from a to b
d. 75 mA, from a to b
e. 110 mA, from a to b