3 years ago

If the distance between two charged particles is doubled, the force between them changes by a factor of ___. (1 point)

1 answer:

4 0

Answer:

decreases 1/4 of the original value

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Deffinitly oxygen cause everyone breathes and yah.

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baherus [9]

Answer: The answer is density

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san4es73 [151]

At critical temperature, the resistivity of the superconductor

B. It suddenly drops to zero

Explanation:

Materials can be classified into three different types depending on their resistance:

Conductors: these materials have generally low resistance and allow electricity to pass through easily. The resistance of a conductor increases linearly with the temperature
Insulators: these materials do not allow electricity to pass through - so they have very high resistance
Semi-conductors: these are materials that are insulators are room temperature, however they becomes conductors when heated. Therefore, the resistance of a semiconductor decreases when the temperature increases
Superconductors: these are special materials that are normally conductors; however, at very low temperatures (we are talking about temperature very near to 0 K), their resistance becomes suddenly zero.

Therefore, the correct answer is:

B. It suddenly drops to zero

Learn more about current and resistance:

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3 years ago

kogti [31]

The atom becomes positively charged.