Current and resistance in a series connection

Principle

The first experiment is meant as a preliminary experiment to gain a way of looking at the topic, and should be seen as a qualitative introduction to the laws of series connections.

The subsequent experiments provide a quantitative approach to the laws. The advantage resulting from not inserting R₁ and R₂ in series immediately in the second experiment, is that the procedure is then analogous to that in the first experiment, and that it enables the measured values for R₁ and R₂ to be compared with the value for R₁.

Benefits

• No additional cable connections between the building blocks needed - clear arragned and quick setup
• Contact saftey due to puzzle blocks system
• Corrosion-free gold plated contacts
• Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside

Tasks

What happens when one filament lamp is supplemented by a second one in series?

1. Connect a second, identical lamp in series to one being already in a circuit and interpret the resulting effect.

2. Examine a series connection of two technical resistors to determine which laws apply to the current and the resistance in the entire circuit.