Tutorial 1 - polarity its power is determined using p=-iv...

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F i n a l M a r k : ECTE 290 Tut 1 Student Name: All questions 1 mark unless indicated. Total 10 Marks. 1. When the actual direction of current is unknown a reference direction can be arbitrarily assigned to it initially for analysis. 2. If the actual direction of the current is opposite to the reference direction the current will have negative value. 3. When current enters an element from the negative end of reference voltage
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Unformatted text preview: polarity its power is determined using p=-iv 4. p>0 means the element is absorbing power from the circuit. 5. (3 marks) Find the values of the currrents i a , i c and i d Solution: i a =-2 A, i c =1 A, i d =4 A. i a i b =2 A i e =1 A i c i d 3 A 6. (3 marks) Solve for the voltages v a , v b and v c. Solution: v a =-5 V, v b =-5 V, v c =10 V. 5 V + + + + + +- -----V c V b V a 15 V 10 V...
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Tutorial 1 - polarity its power is determined using p=-iv...

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