This print-out should have 8 questions. Multiple-choice questions may coutine on

Question

This print-out should have 8 questions. Multiple-choice questions may coutine on the next colnn or page find all choices before answering. 4 MO 001 10.0 points 11 V The equivalent resistance of the cireuit in the figure is feng-66.0 20 81 Find the voltage across the 4 M center-left resistor at time t 1 58. 81 20 Answer in umits of V 005 (part 2 of 2) 10.0 points Much later, at some time o 0s, the switch is moved from position "a" to position "b Find the value of R Answer in units of . Find the voltage across the 4 M center-left resistor at time t' = 2.8 s. Answer in units of V 002 (part 1 of 2) 10.0 points 006 10.0 points In the cireuit of the figure, the current is Consider an RC circuit. The energy equa- tion for the eireuit is given by 3 A and the value of Ez is unknown. 28 V 952 1.8 round trip m-RI-e:0 5.8 What is the magnitude of the cument Answer in units of A (see textbook p813). Based on this equation it can be shown, by using 1 = dt, that Q(t) = Quexp(-.).where T-RC 003 (part 2 of 2) 10.0 points WITHDRAWN 004 (part 1 of 2) 10.0 points Given that C 0.13 F, and the initial plate charge is Qo- After 2s, the plate charge is 0.5Qo. What is the resistance of the resistor across the capacitor.? For a long period of time the switch S is in position "b". At t = 0 s, the swith S is moved from position "b to position a Answer in units of M 007 10.0 points Consider the cireuit shown in the figure.

Explanation / Answer

here,

01)

(20 + 81) ohm and (81 + 20) ohm are in parallel, their equivalent resistance , R1 = (101 * 101)/(101 + 101) ohm

R1 = 50.5 ohm

Req = 66 ohm

R1 + R = 66 ohm

50.5 + R = 66 ohm

R = 15.5 ohm

the value of R is 15.5 ohm

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