Which of the following explains how electricity flows? Protons flow from the positive end of a source towards the negative end.E
lectrons flow from the negative end of a source towards the positive end.
Protons flow from the negative end of a source towards the positive end.
Electrons flow from the positive end of a source towards the negative end.
Protons flow from the negative end of a source towards the positive end.
Electrons flow from the positive end of a source towards the negative end.
1 answer:
I know for a fact the answer would (not) be the last option. This would not be a way that electricity would be able to really flow.
Your correct answer would be of when the "e<span>lectrons flow from the negative end of a source towards the positive end."
This would be because when the electrons would be free, they would have enough energy to then move from the negative side of the end, to the positive side.</span>
Your correct answer would be of when the "e<span>lectrons flow from the negative end of a source towards the positive end."
This would be because when the electrons would be free, they would have enough energy to then move from the negative side of the end, to the positive side.</span>
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Explanation:
A change that does not cause any change in chemical composition of a substance is known as a physical change.
For example, mass, density, volume etc are all physical changes.
On the other hand, a change that brings change in chemical composition of a substance is known as chemical change.
For example, combustion, toxicity, reactivity etc are all chemical changes.
Hence, following statements are identified as chemical or physical changes as follows.
(a) Oxygen gas supports combustion : Chemical change
(b) Fertilizers help to increase agricultural production : Chemical change
(c) Water boils below on top of a mountain : Physical change
(d) Lead is denser than aluminum : Physical change
(e) Uranium is a radioactive element : Chemical change