Practice Problems

Practice Problems - ECE 110 M-C Brunet easy 1 challenging 1...

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ECE 110 M.-C. Brunet Practice Problems Collection from all Transparencies M.-C. BRUNET ECE 110 UIUC 1.16 Compute the variation of charge from 0 to 7 ms for the following current: I = 5A 6 10 8 5 I(mA) T (ms) SOLUTIONS: 1. (a) 35mC (b) 27 μ C 2. (a) I = 0.16A (b) I = 0.64A I? (b) 10 18 protons/second are traveling to the right, and 3.10 18 electrons/second are traveling to the left. 1 2 (a) (b) 10 18 protons per second are traveling to the right. (a) What is the value of I if: easy challenging M.-C. BRUNET ECE 110 UIUC 2.16 E2 E3 E1 v + - m v 3 + - + - 5v v 2 + - Am im i1 i3 i2 = 3A i0 1 2 3 1 5 4 2 6 7 8 Name the pairs of elements in series, and in parallel. Give im, i3, v 3 , v m and i 0 im=3A, i 3 = 0, v 3 = 0 (= voltage across the ammeter). E3 is short-circuited (and im = i 2) v m = 5v, i o = 0 (voltmeter) (1,2) in series, (3,4) and (7,8) in parallel none 3 2 1 3 3 5 6 2 4 1 Name the pairs of elements in series, and in parallel. SOLUTIONS : (Ammeter) (Voltmeter)

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