Problem 10: (6% of Assignment Value) A large research solenoid has a self-inductance of 3.5 H. Randomized Variables L = 3.5 H I = 75 A t = 77.5 ms Part (a) What is the magnitude of the emf, in kilovolts, that opposes shutting off a current of 75 A through the solenoid, in 77.5 ms? ε = 4741.94| sin() cos() tan() π 7 8 9 HOME cotan() asin() acos() E↑^^4 5 6 atan() acotan() sinh() * 2 3 cosh() tanh() cotanh() + - 0 END ●Degrees Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! 1 Submission(s) Remaining Hints: 4% deduction per hint. Hints remaining: 2 Feedback: 5% deduction per feedback. Part (b) How much energy in joules is stored in the inductor at full current? Part (c) At what rate, in megawatts, must energy be dissipated when the full current is switched off in 77.5 ms?