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Unformatted text preview: Ω load resistor, what value of C will guarantee a ripple < 0.01 V m ? (Chapter 10.6 in the textbook explains how to calculate the ripple). V s t (ms) 1 .5 1V-1V 3. Consider the circuit below wherein an inductor carrying an initial current i (0) = I o is discharged through a resistor. (a) Find an expression for i ( t ) in terms of R and L . (b) Obtain an expression for the energy stored in the inductor as a function of time. (c) Calculate the power lost by the resistor as a function of time and verify it agrees with your result from part (b). 4. The switch in the circuit below was open a long time before closing at t = 0. (a) Give an expression for i L ( t ) for t ≥ 0. (b) Give an expression for v L ( t ) for t ≥ 0. (c) Are i L and v L continuous at t = 0? 12V 10 Ω 40 Ω 120 Ω 20 Ω 100 mH + _ v L i L t=0...
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- Fall '07
- iL, Rectifier, Vacuum tube, load resistor, arbitrary load resistor