The magnetic field of a cylindrical magnet that has a pole-face diameter of 4.6 cm can be varied sinusoidally between 30.7 T and 34.0 T at a frequency of 17 Hz. At a radial distance of 1.9 cm, what is the amplitude of the electric field induced by the variation? Number Units V/m eTextbook and Media Save for Later Last saved 1 second ago. Attempts: unlimited Submit Answer Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes.The inductance of a closely packed coil of 450 turns is 8.5 mH. Calculate the magnetic flux through the coil when the current is 7.5 MA. Number Units eTextbook and Media Save for Later Attempts: unlimited Submit AnswerA long solenoid has a diameter of 16.8 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 33.5 mT is produced in its interior. By decreasing i, the field is caused to decrease at the rate of 8.04 mT/s. Calculate the magnitude of the induced electric field (a) 5.15 cm and (b) 14.7 cm from the axis of the solenoid. (a) Number 1 Units V/m (b) Number i Units V/m eTextbook and MediaTwo identical long wires of radius a = 2.30 mm are parallel and carry identical currents of i = 7.00 A in opposite directions. Their center-to-center separation is W= 15.0 cm. Neglect the flux within the wires but consider the flux in the region between the wires. What is the inductance per unit length of the wires? -W- Number 1 Units