Electricity & Magnetism: Resistance Model - Nails in an Inclined Board

PIRA Class: 5D10.40

Purpose:  

To use to draw analogies between the force of gravity and the electrical force (gravitational potential energy vs. electrical potential energy, lattice resistance vs. air resistance, terminal velocity vs. drift velocity) 

Description: 

Wooden balls are rolled down a ramp with nails. The slope of the incline can represent the applied E.M.F.

NOTE: To insure that balls roll freely down board and not get "stuck" on the side nails, be sure to have the board end marked "TOP" elevated. 

Equipment:
Orange (golf or wooden) balls

Support Equipment: 

Resistance Model Board

Location:
By 500s