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Name:___________________________________ Date:______________ Hour:
Series and Parallel Circuits
1) A series circuit has 120 v source connected to 3 resistors: 20 Ω, 40 Ω, and 60 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current in the circuit
d) which resistor has the most current flowing through it? Explain.
e) which resistor uses the most voltage? Explain.
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
2) A parallel circuit with a 120 v power source has 4 resistors: 5 Ω, 9 Ω, 15 Ω, and 32 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current flowing in the circuit
d) which resistor has the most current flowing through it? Explain
e) which resistor uses the most voltage? Explain
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
3) A series circuit has 4 resistors connected to 120 v source: 15 Ω, 45 Ω, 60 Ω, and 80 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current flowing in the circuit
d) which resistor has the most current flowing through it? Explain
e) which resistor uses the most voltage? Explain
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
4) A series circuit has 4 resistors connected to a 45 v source: 5 Ω, 8 Ω, 10 Ω, and 12 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current flowing in the circuit
d) which resistor has the most current flowing through it? Explain
e) which resistor uses the most voltage? Explain
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
5) A parallel circuit with a 120 v source has 4 resistors: 15 Ω, 45 Ω, 60 Ω, and 80 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current flowing in the circuit
d) which resistor has the most current flowing through it? Explain
e) which resistor uses the most voltage? Explain
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
6) A parallel circuit with 120 v source has 3 resistors: 5 Ω, 7.5 Ω, and 9.8 Ω.
a) draw a picture of the circuit
b) calculate the total resistance of the circuit
c) calculate the total current flowing in the circuit
d) which resistor has the most current flowing through it? Explain
e) which resistor uses the most voltage? Explain
f) calculate the voltage, current, and resistance at each resistor
g) calculate the power at each resistor
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