Download The diagram below shows an incomplete parallel circuit and

Review Test chap. 32, 34 & 35
Name _____________________________________________ class__________ date ______
1. A circuit with three identical light bulbs is shown in the diagram below.
a. Label is the parts.
b. Describe what each light bulb does if all switches are open:

When all switches are closed

when switch 1 is open and switch 2 is closed and vice versa
Show all steps and explain each
a. What type of circuit is shown?
b. What is total resistance?
c. What is total current?
d. How much voltage is dropped across each resistor?
e. What is the power of the circuit
3. Draw a parallel circuit include a12 v battery, 10 ohm resistor and a light bulb in parallel
a.
Draw an ammeter in the circuit so that it measures the total current of the circuit.
b. Calculate the current flowing through the resistor. Show your calculations and include units in your
answer.
When the circuit is operating, the ammeter measures a total current of 2 A.
c. Determine the resistance of the light bulb. Show your calculations or explain your reasoning.
Include units in your answer.
1. Explain all the possible ways to increase the electric force between two positively charged particles?
2. The potential difference across a resistor is 10 V. When a current of 3 A is flowing through this resistor,
what is the power used by the resistor?
3. Explain how a buildup of static charge occurs on an object?
4. What is the voltage across the terminals of a 15 resistor that has 0.085 A of current flowing through it?
5.Explain what would happen to the current through a circuit component if the following occurred.
A. decreasing the power in the component
C. increasing the voltage across the component
B. increasing the resistance of the
component
D. placing another identical component in series in the
circuit
6. A hair dryer uses 7 A of current when connected to a wall outlet that provides 120 V of electricity. What
is the resistance of the hair dryer?
7. Based on Ohm’s law, explain what must happen when the voltage across a resistor is decreased?
8. A circuit diagram is shown below.
Which component in the diagram converts electrical energy into light energy Explain?
8. A current of 5 A passes through two resistors placed in series. The first resistor has a resistance of 5
and the second resistor has a resistance of 10 . What is the total potential difference across the two
resistors?
9. An electrostatic paint sprayer is used to spray paint evenly onto the surface of a car. Before the paint is
sprayed, the car body is given a positive charge and the paint droplets are given a negative charge. The
paint droplets experience an attractive force as soon as they are released from the sprayer. The paint
droplets are originally sprayed at a distance of 20 cm from the car body, as shown below.
Explain what will happen to the attractive forces on the paint droplets in each case
A. The charge on the car body is
doubled.
C. The distance between the paint droplets and the car body
is halved.
B. The charge on the paint droplets is
doubled.
D. The distance between the paint droplets and the car body
is doubled.