Problem

Repeat Problem 1 using the values given in Problem 2.Problem 1a) Using the same numerical...

Repeat Problem 1 using the values given in Problem 2.

Problem 1

a) Using the same numerical values used in the Practical Perspective example in the text, find the instant of time when the voltage across the capacitor is maximum.

b) Find the maximum value of υc.

c) Compare the values obtained in (a) and (b) with tmax and υc(tmax).

Problem 2

The values of the parameters in the circuit in Fig. 8.21 are R = 3 H; L = 5 mH; C = 0.25μF; Vdc = 12 V; and a = 50 Assume the switch opens when the primary winding current is 4 A.

a) How much energy is stored in the circuit at t = 0+?

b) Assume the spark plug does not fire. What is the maximum voltage available at the spark plug?

c) What is the voltage across the capacitor when the voltage across the spark plug is at its maximum value?

REFERENCE:

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Solutions For Problems in Chapter 8

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