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Unit 11 practice Kirchoff's Laws Flashcards | StudBud
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Unit 11 practice Kirchoff's Laws
Unit 11 practice Kirchoff's Laws
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AP Physics C, Kirchoff's Laws
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Questions
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Answers
1
Complex Circuits 3
D
A
C
B
2
What is the voltage difference between a and b when the switch is open?
5 V
-5 v
-2.7 V
0 V
3
Which of the following is equal to the voltage from the battery?
Va + Vb + Vc + Vd
Va + Vb
Vd + Va
Va + Vb + Vc
4
What is Ib?
.679 A
1.769 A
2.678 A
-.769 A
5
What is Ib?
1 A
-4 A
4 A
3 A
6
Complex Circuits 1
A
C
B
D
7
Complex Circuits 4
A
B
C
D
8
What is I3?
1.167 A
.5 A
1.667 A
-.5 A
9
Complex Circuits 2
C
B
A
D
10
What is the voltage of the battery on the left?
10 V
20 V
9 V
5 V
11
Kirchoff's current law applies to a parallel circuit because it states that:
current stays the same as more branches are added
all current flowing into a branch must flow out again
current is the same everywhere in branching circuit paths
current is the same everywhere throughout one entire circuit
12
Which equation correctly expresses Kirchhoff's Voltage Law for current loop A?
32 = 2Ia + 8Ia
-32 = 2Ia + 8Ia
-32 = 2Ia + 8(Ia-Ib)
32 = 2Ia + 8(Ia-Ib)
13
Find the current through R1
4.413 mA
2.143
0
2 mA
14
Circuit calculations
B
A
D
C
15
Over 5 seconds, 90 coulombs flow from Vy to Vn and 70 coulombs flow from Vn to Vx. What is Iz?
4 A
4.5 A
20 A
45 A
16
How many circuit loops (
think Kirchoff
) are in this circuit?
1
4
3
2
17
Which of the following is NOT correct?
I1 - I2 = I3
I4 + I5 = I6
I6 + I3 = I7
I2 + I5 = I4
18
What is the current equation at junction c?
I4 + I3 = I5
I3 = I5 + I4
-I4 + I6 = I2
I4 = I3 + I5
19
What is Ia?
4 A
1.25 A
1 A
2.25 A
20
Which ONE of these statement's is true to Kirchoff's Voltage Law?
Sum of voltage drops across closed loop = sum of V source
Current arriving at any junction = current leaving junction
Resistance is opposition to flow
Voltage and current increase are directly proportional
