quiz on coin powered flashlight

Why are two different types of coins sometimes used in these flashlights?

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In a coin-powered flashlight, what component produces light?

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What safety precaution should be taken when building a coin-powered flashlight?

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What is the role of saltwater in a coin-powered flashlight circuit?

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What is the typical voltage needed to power a small LED?

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What type of coin is typically used in a basic DIY coin-powered flashlight experiment?

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Which of the following is necessary to complete the circuit in a coin-powered flashlight?

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What is the primary function of a coin in a coin-powered flashlight?

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quiz on coin powered flashlight
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