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The separation between two magnets is reduced by a factor of 5. How does the force between them change? Question 18 options:

Question

The separation between two magnets is reduced by a factor of 5. How does the force between them change?

Question 18 options:

increases by a factor of 5

increases by a factor of 25

decreases by a factor of 5

decreases by a factor of 25

doesn’t change

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Physics
6 months
2021-07-17T12:21:55+00:00
2021-07-17T12:21:55+00:00 1 Answers
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## Answers ( )

Answer:Increase by a factor of 25Explanation:We know that magnetic force is proportional to

where r is the distance between them

Thus

Where =magnetic field

If distance is reduced by a factor of then force must increase by a factor of because

so