Electric Circuits - Bow Valley College

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R3

IT = I1 + I2 +

I3

Question 1:

In a parallel circuit the current in must equal the

current out.

Sample Parallel Circuits:

Find:

(a) total resistance

(b) total current

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R3 IT = I1 + I2 + I3 Question 1: In a parallel circuit the current in must equal the current out. Sample Parallel Circuits: Find: (a) total resistance (b) total current

(c) Vdrop (d) I1, I2, I3 (a) (b) V = IR (current through each resistor) 12.0V = I (1.09 ) I = 11.0 A (c) Vdrop= 12.0 V Voltage drop in parallel must be equal across all branches. (d) V=I1R 12.0 V = I1 (2.0 ) I1 = 6.00 A CHECK: IT = I1 + I2 + I3 IT = 6.00 A + 3.00 A + 2.00 A IT = 11.0 A Question 2: V = I3R 12.0 V = I3R (6.00 ) I3 = 2.00 A V =I2R 12.0 V = I2 (4.00 ) I2 = 3.00 A

Page 1 and 2: Electric Circuits Current - a flow
Page 3: Find: (a) total resistance (b) tota
Page 7 and 8: Question 3: Find: (a) (a) total res
Page 9 and 10: (a) 1 = 1 + 1 R 12.0 8.00 R = 4.80
Page 11 and 12: Question 3: Find (a) total resistan

Electric Circuits - Bow Valley College

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