Answer:
Step-by-step explanation:
A region around a charged particle where another charged particle experiences a force is called electric field.
Electric field strength is defined as the force experienced by unit positive test cahrge when placed in an electric field.
The formula of electric field due to a point cahrge is given by
E = k q / r^2
Where k is a constant and it's value is
9 × 10^9 Nm^2/C^2.
1236 = 9 × 10^9 × q / 16
q = 1.48 × 10^-3 Coulomb