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Byju's Answer
Standard VIII
Chemistry
Ionic Bonding
Why is electr...
Question
Why is electron taken as fundamental charge, though quark has a fraction of electronic charge?
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Solution
Quarks are not that stable as electrons. Their probability of existence is still a topic of research.
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The quarks have fractional electronic charge e/3 and 2e/3. Then why is such a fractional electronic charge not reflected on the oil drops?
Q.
If electron charge e, electron mass m, speed of light in vacuum c and Planck's constant h are taken as fundamental constant h are taken as fundamental quantities, the permeability of vacuum
μ
0
can be expressed in units of
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Atoms have electrons, protons, and neutrons as the fundamental particles. The electrical charge of an atom is-
Q.
If electronic charge
e
, electron mass
m
, speed of light in vaccum
c
and Plank's constant
h
are taken as fundamental quantities, the permeability of vaccum
μ
0
can be expressed in units of
Hint:
[
h
]
=
[
M
L
2
T
−
1
]
,
[
μ
0
]
=
[
M
L
T
−
2
A
−
2
]
Q.
Atoms have electrons, protons, and neutrons as the fundamental particles. The net electrical charge on an atom is:
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