Electricity and Magnetism : AC - DC Generators / A Series/Parallel Circuit Puzzle / Circle of Magnetism / Dynamo 1/ Dynamo 2 / Induced Current - Eddy Currents / Lenz's Law / The Magnetic Field - Lines of Force / The Rotating Copper Disk / Pepsi Can / Helmholtz Coils / Electrons Beam
A Series/Parallel Circuit Puzzle

The purpose of this display is to show how the current flowing in a circuit depends on the various connection possibilities.  A power supply applies a potential difference V between points A and B on the board.  You may think of it as a battery, or the 110V at the outlets of your home. The lamps on the board can be connected in a variety of ways by  means of the knife switches.  The values of the currents in each lamp, and the total current are shown on the meters.

I)-CONNECT ONE LAMP

II)-CONNECT TWO LAMPS IN SERIES

 

III)-CONNECT TWO LAMPS IN PARALLEL

IV)- SERIES PARALLEL CONNECTION

V )-SHORT CIRCUIT