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U5. L2. Series Circuits – GP/IP & HW
SHOW ALL WORK USING GUESS. No GUESS, no credit. Box final answers and write them in a sentence.
EXAMPLE - Series
Draw a series circuit with a 12V battery, 3Ω resistor, 2Ω resistor, and 1Ω resistor.
Determine the Equivalent resistance of the circuit.
Determine the total current of the circuit.
Determine the voltage drop across each resistor.
EXAMPLE – Parallel
Draw a circuit with a 9V battery, and a 3Ω resistor, 5Ω resistor, and 6Ω resistor in parallel.
Determine the Equivalent resistance of the circuit.
Determine the total current of the circuit.
Determine the current through each branch.
Created by M. Kelly
OBJECTS IN MOTION STAY IN MOTION!
GUIDED PRACTICE – Series
1. Draw a series circuit that includes a 12 V battery, with two 5 Ω resistors and one 2 Ω resistor.
Use a VIR chart to answer the following:
a.
What is the total resistance in this circuit?
b.
What is the current?
c.
What is the voltage across each resistor?
2. Complete a VIR chart for the following circuit.
a.
What is the voltage drop across the 84 ohm resistor?
b.
What is the equivalent resistance?
c.
What is the current through the 73 ohm resistor?
d.
What is the total current?
GUIDED PRACTICE – Parallel
1. For this question, create a VIR chart. According the circuit shown:
a.
What is the total resistance?
b.
What is the total current?
c.
What is the current across the 2Ω resistor?
2. There is a circuit with three 10 ohm resistors in parallel.
a.
Draw the circuit. Create a VIR chart.
b.
What is the equivalent resistance?
c.
What is the total current through the circuit?
d.
What is the current through each branch?
Created by M. Kelly
OBJECTS IN MOTION STAY IN MOTION!
INDEPENDENT PRACTICE
1. According to the diagram to the right, if each resistor is 10 Ω,
a.
What is the total resistance?
b.
What is the current if the battery’s voltage is 8 V?
2. Express your understanding of equivalent resistance by filling in the blanks.
a.
Having two 4-Ω resistors in series is equivalent to having one _____Ω resistor.
b.
Having three 4-Ω resistors in series is equivalent to having one _____Ω resistor.
c.
Having two 4-Ω resistors in parallel is equivalent to having one _____Ω resistor.
d.
Having three 4-Ω resistors in parallel is equivalent to having one _____Ω resistor.
3. TRUE or FALSE: Three light bulbs are connected in series. The filament of one of the light bulbs burns out. The remaining two
light bulbs will still be lit; yet, their brightness will be noticeably less.
4. TRUE or FALSE: If resistors are connected in parallel, then the current will be the same through each resistor.
5. Analyze the following circuits and complete a VIR chart for each.
12 V
Created by M. Kelly
OBJECTS IN MOTION STAY IN MOTION!