What is the electric force between two charges of 5 nC and 20 nC when the distance between them is 10 cm?

1 Answer
Junaid Mirza
Apr 4, 2018

#9 × 10^-5\ "N"#

Explanation:

Electrostatic Force between two charged particles is given as

#"F" = 1/(4 π ε_0) ("q"_1"q"_2)/"d"^2#

Where, #1/(4 π ε_0)# is Coulomb’s Law constant. It’s value is #9 × 10^9\ "N m"^2//"C"^2#

#"F" = 9 × 10^9\ "N m"^2//"C"^2 × (5 × 10^-9\ "C" × 20 × 10^-9\ "C")/("0.1 m")^2#

#"F" = 9 × 10^-5\ "N"#

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