Electricity and Magnetism > Resistance DCS# 5D10.40

RESISTANCE MODEL



APPARATUS
resistance model
202-14-A
steel balls
202-14-A


DESCRIPTION
The track with nails is inclined to form a ramp.  Steel balls are released from the top and undergo a random walk with a drift as they collide with the nails on the way down.  The nails represent atoms, the balls electrons.  A steeper ramp represents a larger applied voltage.