Answer:
[tex]d= 2.2 m[/tex]
Explanation:
The data given in the question is
Charge : q =[tex]7.2 \times 10^{-5} C[/tex]
Electric field Strength : E = [tex]4.8 \times 10^{5} N/C[/tex]
Electrical potential Energy : U = [tex]75J[/tex]
Let, the distance be "d"
So, the formula for Electrical potential energy is
[tex]U= q \times E \times d[/tex]
Simplified formula for distance become
[tex]d=\frac{U}{q \times E}[/tex]
Now , insert the value
[tex]d=\frac{75 J}{7.2 \times 10^{-5}C \times 4.8 \times 10^5 N/C}[/tex]
or,
[tex]d=2.17 m[/tex]
Rounding off
[tex]d= 2.2 m[/tex]