Answer:
q = 8.47×10⁻⁷ C.
Explanation:
From Coulomb's,
V = kq/r..................... Equation 1
Where, V = Electric potential, q = charge, r = distance, k = proportionality constant.
Make q the subject of the equation
q = Vr/k..................... Equation 2
Given: V = 5.15×10² V, r = 14.8 m
Constant: k = 9.0×10⁹ Nm²/C²
Substitute into equation 2
q = 5.15×10²×14.8/9.0×10⁹
q = 8.47×10⁻⁷ C.