Reflections on Electric Potential in Physics Exercises
What is the value of electric potential at a point if a charge of 5 μC was moved from ground to that point, with a work done of 40 x 10^(-6) J?
(a) 8 V
(b) 144000 V
(c) 2 x 10^(-8) C
Calculate the electric potential at point B located 50 cm away from a positive charge q = 8 x 10^(-6) C
Determine the value of a charge transported from one point to another, with a work done of 8 x 10^(-5) J and a potential difference of 4 x 10^3 V.
(a) 8 V, (b) 144000 V, (c) 2 x 10^(-8) C
Electric potential in physics exercises often involves calculations based on the work done and the charge involved. In the given data, we have scenarios where we need to determine the electric potential at a point, calculate the potential at a certain distance from a charge, and find the value of a transported charge given certain conditions.
Electric Potential Calculation
For the first scenario, to find the electric potential at a point when moving a charge of 5 μC with a work done of 40 x 10^(-6) J, we use the formula W = qV. By substituting the values, we find that the electric potential is 8 V.
Calculating Electric Potential at Point B
For the second scenario, to calculate the electric potential at point B located 50 cm away from a charge of 8 x 10^(-6) C, we use the formula V = kq/r, where k is the electrostatic constant. By substituting the values and converting the distance to meters, we find the electric potential at point B to be 144000 V.
Finding the Value of a Transported Charge
In the third scenario, given a work done of 8 x 10^(-5) J and a potential difference of 4000 V, we can determine the value of the transported charge using the formula W = qV. By substituting the values, we find that the charge is 2 x 10^(-8) C.