Imagine looking at a coil of wire that was on your desk, wrapped around the circular frame of a clock. There are "N" turns and the area of the coil is A. The Earth's magnetic field, B, travels downward through the coil. In a fit of anger you decide to squish the coil to smithereens. In doing so you changed the area through which the field was traveling. What current would result, and in what direction?

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?

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?