Current Attempt in Progress Your answer is partially correct. A long solenoid has a diameter of 15.7 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 31.7 mT is produced in its interior. By decreasing i, the field is caused to decrease at the rate of 4.88 mT/s. Calculate the magnitude of the induced electric field (a) 5.21 cm and (b) 10.9 cm from the axis of the solenoid. (a) Number 1.27E-4 Units V/m (b) Number 7.25E-5 Units V/m