Experiment 2
In his second experiment, he repeats the same procedure he used in Experiment 1, except that this time he keeps the number of coils the same but changes the battery voltage. He records the number of paper clips attracted each time in a second table.
Battery Voltage (V) Number of paper clips attracted to the magnet
3.0 3
4.5 6
6.0 9
7.5 13
To analyze this experiment, we can plot a graph of battery voltage (x-axis) against the number of paper clips attracted to the magnet (y-axis).
Based on the data provided, the graph would show an increasing trend. As the battery voltage increases, the number of paper clips attracted to the magnet also increases. This indicates that higher battery voltage generates a stronger magnetic field.
The relationship between battery voltage and the number of paper clips attracted can be described as a positive correlation. This means that as one variable increases, the other variable also increases. In this case, as battery voltage increases, the number of paper clips attracted to the magnet increases as well.
By changing the battery voltage while keeping the number of coils constant, the researcher is able to isolate the effect of voltage on the strength of the electromagnetic field. This experiment helps establish a relationship between battery voltage and magnetic strength, allowing for further exploration and understanding of electromagnetism.