Chapter 11.1
Current, Resistance, and Ohm's Law
Flip a switch and the light is on instantly, yet the electrons in the wire crawl slower than a snail. What moves fast is not the charge but the push.
free · lesson 9 of 27
By the end
- 01Define current as the rate of charge flow and distinguish conventional current from electron motion
- 02Read and draw circuit schematics with the standard symbols, identifying open, closed, and short circuits
- 03Relate resistance to resistivity, length, and cross-sectional area
- 04Apply Ohm's law and identify ohmic behavior from a current–voltage graph