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Unformatted text preview: after the switch was closed, it is found that v 2 = +5V . You are required to determine the value of i 2 (t ) and di 2 (t )/dt 6. Find the voltage V y in the following circuit. 7. Show that the two magnetically coupled coils in Fig.P5 can be replaced by single coil having an inductance of L ab =( L 1 L 2M 2 ) / ( L 1 + L 2 + 2 M) Part Two: questions (you are required to submit your solutions) Q1. Consider the network N1.(5 points) Q2. Assume that the vI relationship for a device is given below. (5 points) Q3. Below is a model of a one transistor preamplifier that is used to amplify the output of a low amplitude magnetic pickup and drive a 25kohm load. Express v L (t) measured across the load as a function of v s (t). (10 points) Q4. Consider the circuit below. (10 points) Note that the net power in a circuit must always be zero. Above problems shows this by example....
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This note was uploaded on 10/07/2011 for the course EE 10 taught by Professor Chang during the Spring '07 term at UCLA.
 Spring '07
 Chang

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