Problem 2: A1.7 H inductor in an RL circuit (with resistance 1.95 Q) is initially carrying a current of 5.05 A. A switch is then thrown (between positions 1 and 2, see figure), which causes the inductor to begin losing energy. L Randomized Variables R I= 5.05 A L = 1.7H R= 1.95 2 Part (a) What is the initial energy in the inductor in J? Eind sin() cos() tan() 7 9. HOME cotan() asin() acos() E A 4 5 6 atan() acotan() sinh() 2 3 cosh() tanh() cotanh() END Degrees Radians VOI BACKSPACE DEL CLEAR Submit I give up! Hint Feedback Part (b) How long will it take the current to decline to 25.00% of its initial value? Express this value in seconds. Part (c) Calculate the average power dissipated in W. co 1.

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.