Electricity and Magnetism > DC Circuits
DCS# 5F20.50b
CIRCUIT PUZZLE
APPARATUS
light fixture
202-19-A
4 25-W bulbs
101-16-C6
DESCRIPTION
The circuit contains four identical light bulbs in series and parallel combinations. Figure out how the bulbs are wired together by unscrewing one at a time and observing changes in the brightness of the other three.
