Electric Circuits Answers

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1
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Which components do all circuits have in common? Select three options.

A
energy source
B
voltmeter
C
wires
D
ammeter
E
device that needs electrical energy
2
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Any device that uses current is a

A
switch.
B
voltmeter.
C
battery.
D
resistor.
3

In a circuit diagram, what does this symbol represent?

A
a resistor
B
a light bulb
C
a battery
D
a switch
4

Use the drop-down menus to identify the parts of the diagram labeled A, B, C, and D. Label A Label B Label C Label D

Answers:
Selection 1:battery
Selection 2:switch
Selection 3:resistors
Selection 4:light bulbs
35

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36

Circuit A✔ Circuit B

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37

✔ Circuit ACircuit B

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38

Circuit A✔ Circuit B

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48

They will both remain lit.✔ They will both go out.Bulb B will go out, but bulb A will remain lit.Bulb A will go out, but bulb B will remain lit.

A
They will both remain lit.
B
They will both go out.
C
Bulb B will go out, but bulb A will remain lit.
D
Bulb A will go out, but bulb B will remain lit.
50

Janelle wants to buy some strings of decorative lights for her home. She is trying to decide between two strings of lights that are wired differently.How should Janelle’s lights be wired, and why?

Answer:

Janelle should buy lights that are wired in parallel. The main advantage of lights wired in parallel is that if one bulb goes out, the rest of the bulbs will remain lit.

51

What did you include in your response? Check all that apply.

A
Janelle should buy lights that are wired in parallel.
B
If one bulb goes out, the rest of the bulbs will remain lit.
53

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