Circuit Worksheet
Physics
Mr. Michels, Mr. Lee
Name_____________
Hour_____
Please write your answers in the space provided at the right. Make sure
that you include all units. Show your work or give an explanation for each
item.
1. What is the total or combined resistance of a
network of three resistors connected in series
if each has a resistance of 6Ω?
1. ___________________
2. What is the equivalent or total resistance of a
network of three resistors connected in parallel
if each has a resistance of 6Ω?
2. ___________________
3. Given a series circuit with resistors of 3Ω, 4Ω,
and 5Ω, what is the combined resistance of the
3Ω and 4Ω resistors only?
3. ___________________
4. What is the total resistance of all three of the
resistors listed in number 3?
4. ___________________
5. What equivalent resistance would a 60Ω and a
30Ω resistor present to a circuit if they were
connected in parallel?
5. ___________________
6-9
In the box to the right, draw a series circuit
containing two resistances, R1 and R2, a
battery connected in series serving as the
source of voltage, an ammeter connected in the
circuit to read the current to the circuit from
the battery, and a voltmeter connected across
the external circuit (the total resistance) to
read the total voltage in the circuit.
10-13 In the box to the right, draw an electric
circuit consisting of a battery connected as a
source of voltage, resistors R1 and R2 in
parallel, an ammeter to read total current,
and a voltmeter to read the potential difference
(or voltage) across the external circuit or total
voltage.
14-17. In the box to the right, draw a circuit consisting of a battery, a resistor R1 connected in series
with a parallel combination of R2 and R3. Label
all resistors appropriately.
For 18-28, use the circuit shown below.
Directions: Place the answers to the following problems, which refer to the circuit above, in the spaces
provided at the right. Remember to show some work. There are several terms used which
all mean voltage. These include: voltage drop, potential drop, potential difference, and
voltage of.
18. What is the equivalent or total resistance of R2
and R3?
18. __________________
19. What is the total resistance of R1,R2,R3?
19. __________________
20. What is the total voltage of the circuit?
20. __________________
21. What is the total current leaving the battery?
21. __________________
22. What is the current through R1?
22. __________________
23. What is the voltage lost at R1?
23. __________________
24. What is the voltage lost at R2?
24. __________________
25. What is the current in R2?
25. __________________
26. What is the voltage of R3?
26. __________________
27. How much current is in R3?
27. __________________
28. What is V1+V2? Does this equal V1+V3, too?
Is this value equal to the voltage of the battery?
28. __________________
For 29-43, use the circuit shown below:
29. What is the combined resistance of R3 and R4?
29. __________________
30. What is the combined resistance of R2,R3,R4?
30. __________________
31. What is the combined resistance of R1 and R5?
31. __________________
32. What is the total resistance of the circuit?
32. __________________
33. What is the total voltage of the circuit?
33. __________________
34. What is the total current of the circuit?
34. __________________
35. What is the voltage drop across R1?
35. __________________
36. What is the voltage drop across R5?
36. __________________
37. How much voltage remains to be lost from points
A to B?
37. __________________
38. What is the voltage of R2?
38. __________________
39. What is the current in R2?
39. __________________
40. What is the current in R3 and R4?
40. __________________
41. What is the voltage of R3?
41. __________________
42. What is the voltage of R4?
42. __________________
43. What is V1+V2+V5? Does it equal V1+V3+V4+V5?
Does this equal the total voltage of the circuit?
43. __________________