Calculate the speed of a proton that is accelerated from rest through an electric potential difference of 163 v. (b) calculate the speed of an electron that is accelerated through the same potential difference.
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Ответ:
Kinetic energy = Potential energy
=>
where, M = mass of proton
v = speed
e = charge
V = potential difference through which it is accelerated
So, finding speed using the above equation:
v =
Putting values,
v =
v = 177.15 Km/s
Now, let m = mass of electron
So, Above we got the formula for the speed of proton accelerated through V.
For electron, just replace the mass M (proton) with m (electron) and that's it. Because V is same for both.
So, Speed of electron, v =
Putting values.
v =
On solving
v = 7.56 x
Ответ:
from rest with potential difference of 163 V
E = 1/2 mv² = eΔV
v = √
v = 176,730 m/s or 176.73 km/s
electron that is accelerated through the same potential difference
E = 1/2 mv² = eΔV
v = √
v = 7566753 m/s = 7,566.8 km/s
Ответ:
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