The experiment is magnetic field of a single coil

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

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?

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes