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Byju's Answer
Standard XII
Physics
Dimensional Analysis
If y = t ε ...
Question
If
y
=
t
ε
0
L
V
where t is time,
L
is length,
V
is potential and
ε
0
is permittivity, then dimension of
y
is same as that of:
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Solution
since
[
ε
0
]
=
[
M
−
1
L
−
3
T
4
A
2
]
[
t
]
=
[
T
]
[
V
]
=
[
M
1
L
2
T
−
3
A
−
1
]
[
l
]
=
[
L
]
from given equation:
y
=
t
ε
0
L
V
from RHS
[
T
]
[
M
−
1
L
−
3
T
4
A
2
]
[
L
]
[
M
1
L
2
T
−
3
A
−
1
]
=
[
T
]
[
T
4
−
3
A
2
−
1
]
=
[
T
]
[
T
]
[
A
]
=
[
A
−
1
]
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