Answer:
The work done in moving the unit positive charge is 1.554 X 10⁷ J
Explanation:
Work done in bringing a unit positive charge from infinity is the potential difference of the charge.
V = E X d
where;
V is the potential difference J
E is the field potential N/C
d is the distance moved by the charge m
[tex]V = \frac{k*q}{r}[/tex]
where;
k is coulomb's constant = 8.99 X 10⁹ Nm²/C²
r is the radius of the sphere = distance moved by the unit positive charge
q is the unit positive charge = 197 X 10⁻⁶ C
[tex]V = \frac{8.99X10^9*197X10^{-6}}{0.114}[/tex]
V = 15535.35 X 10³ J
V = 1.554 X 10⁷ J
Therefore, the work done in moving the unit positive charge is 1.554 X 10⁷ J
