Five coulombs of charge pass through the element in
Fig. P1.8 from point A to point B. If the energy absorbed by
the element is 120 J, determine the voltage across the
element.
Given that charge Q= 5C
Energy w= 120J
Given that energy is observed by the element so the sign of the power is
Positive.
From sign convention w =v *Q
v =w*Q
= 120/5
= 24v
Therefore voltage across the given element is 24v.