Question Detail

PHY 102 Coulomb's law and Electric Fields Objective Question

Question

The permittivity of free space, ε₀, is related to the Coulomb constant k₀ by the expression k₀ = 1/(4πε₀). What is the approximate value of ε₀?
Options
A 8.85 × 10⁻¹² C²/N·m²
Correct Answer
B 9.0 × 10⁹ C²/N·m²
C 1.60 × 10⁻¹⁹ C²/N·m²
D 1.00 C²/N·m²
Correct Answer

Option A is the correct answer.

Detailed Explanation

Page 2 states: 'Often, k₀ is replaced by 1/(4πε₀), where ε₀ = 8.85 × 10⁻¹² C²/N·m² is called the permittivity of free space.'

Hint

Locate the definition and value of permittivity of free space in the text on page 2.

Question Info