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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The decreasing order of wavelengths of the photons emitted or absorbed by the H atom is : b → c → a → d
Rydberg's formula :
,
where λ is the wavelength of the photon emitted or absorbed from an H atom electron transition from to
and
= 109677 is the Rydberg Constant. Here
and
represents the transitions.
(a) =2 to
= infinity
= 109677/4 [since 1/infinity = 0] Therefore,
= 4 / 109677 = 0.00003647 m
(b) =4 to
= 20
= 6580.62
Therefore, = 1 / 6580.62 = 0.000152 m
(c) =3 to
= 10
= 11089.56
Therefore, = 1 / 11089.56 = 0.00009 m
(d) =2 to
= 1
= - 82257.75
Therefore, = 1 /82257.75 = - 0.0000121 m
[Even though there is a negative sign, the magnitude is only considered because the sign denotes that energy is emitted.]
So the decreasing order of wavelength of the photon absorbed or emitted is b → c → a → d.
Learn more about the Rydberg's formula athttps://brainly.com/question/14649374
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