Activity 3 — Electric Potential
Two test charges are brought separately into the vicinity of a charge +Q. First, test charge +q is brought to point A a distance r from +Q. Next, +q is removed and a test charge +2q is brought to point B a distance 2r from +Q. Compared with the electrostatic potential of the charge at A, that of the charge at B is…
What is the electric potential at point A?
What is the electric potential at point B?
An electron in an x-ray machine is accelerated through a potential difference of 1.0 x 104 V before it hits the target. What is the kinetic energy of the electron at the instant it hits the target?
Two points A and B are located within a region in which there is an electric field. How would you describe the potential difference ΔV = VB − VA?
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