Force between two charges q1 and q2 separated by a distance r is proportional to q1 q2 / r2. Proportionality constant is

Question

Force between two charges q1 and q2 separated by a distance r is proportional to q1 q2 / r2. Proportionality constant is (A) (ε0/4 π) (B) 4 π ε0 (C) (1/4 π ε0) (D)  1

Tardigrade Admin · Accepted Answer

Correct answer is (c) (1/4 π ε0)

Q. Force between two charges $q_{1}$ and $q_{2}$ separated by a distance $r$ is proportional to $q_{1} q_{2} / r^{2}$ . Proportionality constant is

$\frac{ε _{0}}{4 π}$

$4 π ε_{0}$

$\frac{1}{4 π ε _{0}}$

$1$

Correct answer is (c) $\frac{1}{4 π ε _{0}}$

Q. Force between two charges q1​ and q2​ separated by a distance r is proportional to q1​q2​/r2. Proportionality constant is

4πε0​​

4πε0​

4πε0​1​

1

Correct answer is (c) 4πε0​1​

Q. Force between two charges $q_{1}$ and $q_{2}$ separated by a distance $r$ is proportional to $q_{1} q_{2} / r^{2}$ . Proportionality constant is

$\frac{ε _{0}}{4 π}$

$4 π ε_{0}$

$\frac{1}{4 π ε _{0}}$

$1$

Correct answer is (c) $\frac{1}{4 π ε _{0}}$