15889760
Beschreibung
Quiz von Jeffrey Piggott, aktualisiert more than 1 year ago
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Erstellt von Jeffrey Piggott
vor etwa 6 Jahre
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Frage 1
Frage
Three charged balls, P, Q and R are suspended by insulating threads. Ball P is negatively charged. (See diagram)
What are the charges on ball Q and on ball R?
Image:
Q1 (binary/octet-stream)
Antworten
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A ball Q = positive; ball R = positive
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B ball Q = positive; ball R = negative
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C ball Q = negative; ball R = positive
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B ball Q = negative; ball R = negative
Frage 2
Frage
Which copper wire would have the smallest resistance?
Antworten
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A a long, thick wire
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B a long, thin wire
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C a short, thick wire
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D a short, thin wire
Frage 3
Frage
In which unit is potential difference measured?
Antworten
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A ampere
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B ohm
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C volt
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D watt
Frage 4
Frage
Which material is a conductor of electricity?
Antworten
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A brass
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B glass
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C plastic
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D wood
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