A small particle has charge -7.00 μC and mass 1.50×10^(−4) kg. It moves from point A, where the electric potential is VA = 300 V, to point B, where the electric potential VB = 600 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 5.80 m/s at point A.
(a) What is its speed at point B?
(b) Is it moving faster or slower at B than at A?

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Which sections of the heating curve illustrate this process?