PLS do 5&6 A circuit is constructed with four resistors, one inductor, one batte

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PLS do 5&6

A circuit is constructed with four resistors, one inductor, one battery and a switch as shown. The values for the resistors are: R1 R2-50 ?, R,- 108 2 and R4 148 2. The inductance is L 366 mH and the battery voltage is V = 12 V. The positive terminal of the battery is indicated with a + sign 1) The switch has been open for a long time when at time t0, the switch is closed. What is ll0), the magnitude of the current through the resistor R4 just after the switch is closed? 0.0392 A Submit Your submissions: 0.0392 Computed value: 0.0392 Feedback: Your answer has been judged correct; the exact answer is: 0.0392156862745098 Submitted: Saturday, April 7 at 5:49 PNM 2) What is , the magnitude of the current through the resistor Ra after the switch has been closed for a very long time? 0.0517 A Submit Your submissions: 0.0517 Computed value: 0.0517 Feedback: Your answer has been judged correct; the exact answer is: 0.0516846581615964. Submitted: Saturday, April 7 at 5:50 PM 3) What is ), the magnitude of the current through the inductor after the switch has been closed for a very long time? 0.0353 A Sutbril Your submissions:0,0353 Computed value: 0.0353 Feedback: Your answer has been judged correct; the exact answer ts: 0.0353287536800786 Submitted: Saturday, Aprl 7 at 5:58 PM 4) After the switch has been closed for a very long time, it is then opened. What is lltap), the current through the resistor Ri at a time topon6 ms after the switch was opened? The positive direction for the current is indicated in the 0.002646 A Submit Your submissions:0.002646 Computed value: -0.002646 Feedback: Your answer has been judged correct; the exact answer is: 0.00264993006696936, Submitted: Saturday, April 7 at 6:35 PM 5) What is VLms closed), the magnitude of the maximum voltage across the inductor during the time when the switch is V Rubnit 6) What is xn), the magnitude of the maximum voltage across the inductor during the time when the switch is open? V | Submit

Explanation / Answer

5) when switch if closed then at t = 0 inductor behaves like an open circuit so the volltage across inductor (VL,max) = R3 x I4,(t=0) = 108 x 0.0392 = 4.2336 V

6) when switch is opened again then Voltage decreases across inductor and finally becomes 0 so (VL,max) = current through inductor when switch was closed x (R2+R3)

(VL,max) = 0.0353 x (50+108) = 5.5774 V

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