53730
Descrição
Quiz por hannah.pickard, atualizado more than 1 year ago
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Criado por hannah.pickard
aproximadamente 11 anos atrás
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Questão 1
Questão
Why do resistors get hotter when there is an electric current through them?
Responda
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collisions between moving charges and stationary ions in the wire cause a heating effect
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energy from the current is wasted as heat
Questão 2
Questão
Why does the potential difference across two or more components add up to the potential difference across the battery?
Responda
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none of it is wasted
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the work done in each unit of charge in the battery must equal the work done in the components
Questão 3
Questão
Why is the potential difference largest across the component with the most resistance?
Responda
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more work is done by the charge moving through a large resistance than a smaller one
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it takes more energy to move across a bigger resistance
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