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Physics Worksheet
Electric Circuits
58. Calculate the equivalent resistance of the following
2Ω
compound circuit
Section:
Name:
63. Calculate the equivalent resistance R and the total
current I.
2Ω
4Ω
3Ω
3Ω
2Ω
I
4V
64. Calculate the the total current I, total voltage V and V2.
59. Calculate the equivalent resistance R and the total
current I
2Ω
2Ω V2
4Ω
4A
3Ω
1Ω
4Ω
I
7V
V
65. Calculate the R2, and I2 .
60. Calculate the equivalent resistance R and the total
current I
10 Ω 20 Ω
20Ω
24 Ω
I2
R2
4V
15 Ω
30 Ω
6V
66. Calculate the I2 , R3, the total current I.
12V
3Ω
I1
R3
6Ω
0.5 A
I
61. Calculate the the total current I and total voltage V.
0.1A 10 Ω
20 Ω
15 Ω
12 V
67. Calculate the the total current I and total voltage V.
0.1A 20 Ω
40 Ω
15 Ω
30 Ω
I
V
20 Ω
I
62. If R1 = R2, calculate the R1, I2 , and the total current I.
R1
40 Ω
I2
R2
4V
10 V
V
68. Use the diagram to calculate a) the total resistance in
the circuit, b) the total current through the circuit, c) the
total power the circuit consume, and d) the current
through R2. (where R1 = 10Ω, R2 = 30Ω, R3 = 30Ω, R4 =
15Ω, V = 12V)
I2
R2, V2
R1, V1
I3
R4, V4
R3, V3
I
V
Mr. Lin
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