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Quiz 11.2 Series Circuits and Parallel Circuits
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This is a replica of the first working transistor.
What is the function of any transistor?
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Switch or amplify current
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Resist current
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Provide a source of current
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Reduce and store current
Which is the electronic symbol for a switch?
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Imagine that one bulb burned out on a decorative light string and the whole string went dark. Which circuit diagram best represents this light string?
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What would happen if the switch were closed and then Bulb A in this electrical circuit burned out?
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All three bulbs would go dark
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Bulbs B and C would remain normally lit but A would be dark
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Bulb A would be dark and Bulbs B and C would be more dimly lit
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All three bulbs would remain normally lit up
This is a chip wafer containing many microcircuits that work together.
Which statement about microcircuits such as these is false?
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The transistors in these microcircuits contain moving parts that are so small they are microscopic in size
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Microcircuits are also called integrated circuits or microchips
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Microcircuits can typically hold as much as a million components per square centimeter
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Each of the millions of components in this chip wafer performs the same basic functions as a transistor
This is a typical series circuit diagram.
If another bulb were added to this series what would happen?
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All four bulbs would glow but they would be dimmer
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The last bulb added would be dimmer than the other three bulbs
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None of the bulbs would glow
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All four bulbs would glow as brightly as before the last bulb was added
This is a typical parallel circuit diagram.
If another bulb were added to this series what would happen?
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All four bulbs would glow as brightly as before the last bulb was added
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None of the bulbs would glow
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The last bulb added would be dimmer than the other three bulbs
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All four bulbs would glow but they would be dimmer
Which statement about parallel circuits is false?
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Adding extra resistors in parallel to a parallel circuit increases the total resistance of the circuit
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Each load in a parallel circuit uses all the potential difference supplied by the battery
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The current in a parallel circuit divides into different paths so a pathway with less resistance will have a greater current
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An interruption or break in one pathway in a parallel circuit does not affect the other pathways in the circuit
Which word correctly completes this statement?
Measuring _____ involves measuring the amount of charge passing through a given point per second.
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current
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resistance
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load
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potential difference
Which word correctly completes this statement?
The amount of _____ is the same in all parts of a series circuit.
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current
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resistance
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load
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potential difference
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