In Fig. 30-65, R = 15 Ω, L = 5.0 H, the ideal battery has E = 10 V, and the fuse in the upper branch is an ideal 3.0 A fuse. It has zero resistance as long as the current through it remains less than 3.0 A. If the current reaches 3.0 A, the fuse “blows” and thereafter has infinite resistance. Switch S is closed at time t = 0. (a) When does the fuse blow? (Hint: Equation 30-41 does not apply. Rethink Eq. 30-39.) (b) Sketch a graph of the current i through the inductor as a function of time. Mark the time at which the fuse blows.
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- 79 SSM In Fig. 30-71, the battery is ideal and & - 10 V, R = 5.0 N, R2 = 10 0, and L = 5.0 H. Switch S is closed at time t= 0. Just afterwards, what are (a) i, (b) iz, (c) the current is through the switch, (d) the potential difference V2 across resistor 2, (e) the potential difference V across the inductor, and (f) the rate of change dildr? A long time later, what are (g) i. (h) iz. (i) is. (j) V2, (k) V1, and (1) dizldr? %3D 3, RỊ Re Figure 30-71 Problem 79.arrow_forwardWhen the switch S is toggled to the left, the capacitor C charges through the resistor R. When the switch is toggled to the right, the capacitor discharges current through the patient's torso, modeled as the resistor Rtorso, allowing the heart's normal rhythm to be reestablished. (a) If the capacitor is initially uncharged with C = 7.75 µF and = 1220 V, find the value of R (in ohms) required to charge the capacitor to a voltage of 765 V in 1.70 s. Ω (b) If the capacitor is then discharged across the patient's torso with Rtorso = 1230 Ω, calculate the voltage (in V) across the capacitor after 5.50 ms.arrow_forwardWhen the switch S is toggled to the left, the capacitor C charges through the resistor R. When the switch is toggled to the right, the capacitor discharges current through the patient's torso, modeled as the resistor Rtorso, allowing the heart's normal rhythm to be reestablished. (a)If the capacitor is initially uncharged with C = 8.25 µF and = 1270 V, find the value of R (in ohms) required to charge the capacitor to a voltage of 755 V in 1.70 s. answer in Ω b) If the capacitor is then discharged across the patient's torso with Rtorso = 1260 Ω, calculate the voltage (in V) across the capacitor after 4.50 ms. answer in Varrow_forward
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