What is the electric field experienced by a charged balloon if the charge on the balloon is 9.4 × 10^-10 coulombs and the force it experiences is 8.2 × 10^-2 newtons?

a. 8.7 × 107 newtons/coulomb
b. 9.4 × 10-11 newtons/coulomb
c. 9.4 × 107 newtons/coulomb
d. 8.7 × 10-9 newtons/coulomb

Answer :  A

Given data

Charge on the balloon(q)  = 9.4 × 10⁻¹⁰ coulombs,

Force experiences (F) = 8.2 × 10⁻² N ,

determine the electric field experienced by charged balloon (E)= ?

We know that,

          F = q.E Newtons

          => E = F/q  Newtons/Coulomb

          => E = (8.2 × 10⁻² N) / (9.4 × 10⁻¹⁰ C)

                  = 8.72 × 10⁷ Newtons/Coulombs

               E =8.72 × 10⁷ N/C

Electric field experienced by the charged balloon is 8.72 × 10⁷ N/C