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aleksley [76]
3 years ago
15

Mandy is testing an unknown solution to determine whether it is an acid or a base. She places a piece of red litmus paper into t

he solution and the paper turns blue. What is her unknown solution?
Physics
1 answer:
Marina CMI [18]3 years ago
5 0
The solution is a base
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Answer:

D.

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Explanation:

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Now, we can use Ohm Law:

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at constant V:

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it means that current is inversely proportional to resistance. Hence, the increase of resistance causes <u>the current in circuit to decrease.</u>

Therefore, the correct option will be:

<u>D.</u>

<u>R increases </u>

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