Dr Gulshan S. answered 06/11/20
Tutor
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Physics Teaching is my EXPERTISE with assured improvement
Hi Ashley,
The electrostatic force = 20N
Charge q = 8*10-2 C
Electric field intensity by definition is Force per unit charge
E = Force / charge = F/q
= 20N /8*10-2 C
= 2.5*102 N/C