SATHEE: Physical World Units and Measurements

Physical World Units and Measurements - Result Question 3

3. The unit of permittivity of free space, $ε_{o}$ is

(a) Coulomb $^{2} / (.$ Newton-metre) $^{2}$

[2004]

(b) Coulomb/Newton-metre

(d) Coulomb $^{2} /$ Newton-meter $^{2}$

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Answer:

Correct Answer: 3. (d)

Solution:

(d) $ε_{o} = \frac{q^{2}}{(r^{2}) 4 π F}$

$\Rightarrow$ unit of $ε_{o}$ is (coulomb) $)^{2} /$ newton-metre $^{2}$

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Physical World Units and Measurements - Result Question 3

3. The unit of permittivity of free space, εo is

Answer:

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3. The unit of permittivity of free space, $ε_{o}$ is