Apositive charge of 6.0 x 10-4 c is in an electric field that exerts a force of 4.5 x 10 -4 on it. what is the strength of the electric field?

Electric field is defined as force per unit charge.

So it is given by

now we can find electric field by

So field strength is 0.75 N/C.

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j