Teaching EMRS PGT Mock Test 2023 Physics Electric Charges and Coulomb's Law Forces between Multiple Charges
The four equal charge particles of charge q are placed at the corners of a square of side a. Find the net electrostatic force on any one charge particle (Here K = 1/(4π ϵ0)).
1
\(\frac{{K\;{q^2}}}{{2\;{a^2}}} + \frac{{\sqrt 2 \;K\;{q^2}}}{{{a^2}}}\)
2
\(\frac{{K\;{q^2}}}{{\sqrt 2 \;{a^2}}} + \frac{{\sqrt 2 \;K\;{q^2}}}{{{a^2}}}\)
3
\(\frac{{2\sqrt 2 \;K\;{q^2}}}{{{a^2}}}\)
4
\(\frac{{K\;{q^2}}}{{2\sqrt 2 \;{a^2}}}\)