Adevice that creates a potential difference in an electric circuit is a(n)
a. insulator
b. voltage source
c. conductor
d. circuit

What kind of simple machine is a catapult?

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?