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Question

The dimension of permittivity (ε0) are ______. Take Q as the dimension of charge.
  1. M1L3T2Q2
  2. M1L2T2Q2
  3. M1L2T3Q1
  4. M1L3T2Q2

A
M1L2T2Q2
B
M1L2T3Q1
C
M1L3T2Q2
D
M1L3T2Q2
Solution
Verified by Toppr

We know that electrostatic force is given as:
F=KQ2r2

We know that the dimension of force is [F]=MLT2

MLT2=KQ2r2[K]=ML3T2Q2K=14πεo[εo]=M1L3T2Q2

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Similar Questions
Q1
Match the physical quantities given in Column I with suitable dimensions expressed in Column II.
Column IColumn II
a) Angular momentumg) ML2T2
b) Latent heath) ML2Q2
c) Torquei) ML2T1
d) Capacitanej) ML3T1Q2
e) Inductancek) M1L2T2Q2
f) Resistivityl) L2T2

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Q2
The dimension of permittivity (ε0) are ______. Take Q as the dimension of charge.
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Q3
Dimensional formula of the product of the physical quantity P and Q is [M1L2T2] and the dimensional formula of PQ is [M1L0T2] then
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Q4

Find the dimensional formulae of the capacitance C

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Q = It, U = VIt, Q = CV and V = RI;

Where 'I' denote the electric current, 't' is time and 'U' is energy.

Energy has the dimension of Force x displacement


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Q5
The dimensions of the quantity 1ϵ0e2hc is
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c = velocity of light
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