ECE159H1 Midterm: ECE159_2008_ts_1297735449
31 Jan 2019
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07(ba2159 m11-12) ( 1 point for incorrect tutorial section information) Test 1 answer all questions (non-programmable calculators allowed) Use voltage and current division to find the current ix. Also find the power from the three sources (2 a, 12 v and 5vx 4vy) and state whether they are absorbing or supplying power. To find ix use current division: k2 k7k3k2. Using ohm"s law at the 3 resistor: Since the elements on the left side are in parallel the voltage across each of them is vx: Thus the power from the 2 a (supplying) and the dependent source (absorbing) is: The current from the 12 v source is vy/2k , hence the power from the voltage source (supplying) is: A17: use series/parallel combinations to find the current output (is) from the 12 v source. Req = ([( 5 || 4 ) + 4] || 2 ) + 1. 1: use kcl, kvl and ohm"s law to find the current io.
