Question

Please help, I'm struggling. Thank you

An RL circuit comprised of one resistor and one inductor is shown in the figure below. The resistor and inductor are connected to a source of emf with negligible internal resistance by a switch a. The emf for this circuit is 12.0V. The resistance of the resistor is 0.35 12, and the inductance of the inductor is 53 mH. For the circuit below: a. Sketch the graph of current through the inductor as a function of time after the switch is closed to a. b. Sketch the graph of the voltage across the inductor, EL, as a function of time after the switch is closed to a. Please pay attention to the sign. c. What is the numerical value of the time constant for this circuit? d. After the switch has been closed to a for an extended time, a student decides to close the switch to b opening the switch a). Sketch the graph of current through the inductor as a function of time after the switch is moved to b. e. How much energy is stored in the magnetic field after the current has reached its maximum value? f. After how many time constants will the energy be 12 this maximum value? M WW

Answer 1

D Eing kirchatt A-t toT 34.29 A oct t उ५.2य A 2V

)Time onstant (T)= ISI.43 msec Sec .35 (d) Whng kirchat law dst -Rat Ir 34.29 A 24.29 A t a Energy stord, E-ur 31.16 J e espCEt) 11 s m2. t- tln2= .693t HIP