Answer Happy

The voltage v(t) shown in Fig. P7.85a is given by the graph shown in Fig. P7.85b. If i₁(0) = 0A, how much energy is stored in the inductor at t = 3 s? Given L = 15 H and R = 9 Q. i(t) v(1) (+ LH RΩ iz(t) (a) 4 tu v(t) 10 V 5 2 -10 V (b) Figure P7.85 Notes on entering solution: • Enter your solution in Joules(J) • Enter your solution to 2 decimal points • Do not include units in your answer .ex. 5 J is entered as 5.00 t (s)

The voltage v(t) shown in Fig. P7.85a is given by the graph shown in Fig. P7.85b. If iL(0) = 0, what is i(t = 6 s)? Given L = 5 H and R = 70. i(t) v(1) (+) RΩ LH ir (1) (a) v(t) 10 V tu 5 2 -10 V (b) Figure P7.85 Notes on entering solution: • Enter your solution in Amperes(A) ● Enter your solution to 2 decimal places • Do not include units in your answer .ex. 5 A is entered as 5.00 ● Pay attention to signs t (s)

Question 8 1 pts The voltage v(t) shown in Fig. P7.85a is given by the graph shown in Fig. P7.85b. If i₁(0) = 0, how much power is supplied by the source at t = 4s? Given L = 5 H and R = 13 Q. i(t) v(1) ΒΩ v(t) LH (a) 2 i(t) 10 V -10 V (b) Figure P7.85 Notes on entering solution: ● Enter your solution in Watts (W) ● Enter your solution to 2 decimal places ● Do not include units in your answer • ex. 5 W is entered as 5.00 5 t(s)