Electromagnetic Field and its Strength

Investigating Factors Affecting the Strength of an Electromagnetic Field

Certain factors affect the strength of an electromagnetic field, including the coil density, the wire length, strength of the electric current, and even the metal wire and its type. This paper aims at investigating the effect of one of these factors on the entire strength of an electromagnetic field. The data would be recorded in table form, so that interpretation of the results becomes convenient. Also, the reliability and validity of the hypothesis and the selected method would be gauged for authentication of the strategy.

Planning the Investigation

The changes in the electromagnetic field would be explored by changing the coil density in the simulation. For this purpose, the following criteria are set for looking thoroughly into the changes.

Research question

What is the effect of changes in coil density (independent variable) on the electromagnetic field (dependent variable) with the varying degree (5 to 15) and units in the simulation?

Hypothesis

It is hypothesized that changes in coil density would bring changes in the electromagnetic field. However, it still has to be tested whether the change would be an increment or a reduction in the electromagnetic field.

Scientific reasoning

The magnetic field’s strength is determined by the coil’s ampere-turns, increasing its force to let the electric magnetic current pass through it. The per unit length, the force of the current, and the dense formation of the coil signify the power of the field as the conduction of the current becomes convenient. If the wire density is increased, then the greater the area of the wire through which the conduction of electromagnetic field could pass easily because the power is amplified and the ease of passing electromagnetic is ensured. Hence, the magnetic field is enlarged as well.

Independent variable

The independent variable (IV) is the coil density that would be changed distinctly, and its effect on the electromagnetic field would be tested. Again, ten different settings or manipulations would be checked for this purpose. The settings would range from 5 to 15 units. The unit of measurement for coil density is millimeter (Just a supposition, you can change it according to your liking).

Dependent variable

The dependent variable (DV) is the electromagnetic field which is measured in Tesla.

Controlled variable

The one variable controlled in the simulation is current, set at 1 ampere only throughout the testing and its respective settings.

Data collection

The data would be collected in tabular form after changing the ranges of the coil density and detecting the electromagnetic field change. The data would also be presented in graphical form for further clarification of the changes in the simulation. The number of trials would be three as the range from 5 to 15 would change the coil density.

Collection of Data

Collecting and presenting data

The data is shown in both graphical and tabular forms below, so interpretation of results becomes easier. Further, the number of trials at each level of the independent variable was three; therefore, it is mandatory to mention that the change in the magnetic field remained consistent at each trial and each change of the coil density. For instance, it was tested thrice at a coil density of 5; the magnetic field remained 0.0000628 Tesla each time.

Table 1: Table Generated from the Observations of the Simulation

Coil Density

Magnetic Field Around The Coil (Tesla)

Graph 1: Graph Generated from Microsoft Excel

According to the above-formulated table, Excel does not accurately determine the data on the horizontal axis (x-axis). I tried several times to change axis values, but the Word was somehow not allowed. For example, the values of the x-axis should start from 5, whereas they start from 1.

Data interpretation and describing results with scientific reasoning

The pattern in the table and graph are the same, which is upward increasing. This means that the electromagnetic field gets stronger with each increment in the measurement of the coil density. It could also be inferred that coil density and electromagnetic field are directly proportional, leading to the fact that when the independent variable is increased, the dependent variable increases. Therefore, the scientific reasoning of these results shows that ampere-turns of the coil let the force of the electromagnetic field become strong at each alteration. As the dense formation of the coil is increased, the power of the field is amplified by making the area of the coil greater and effortlessly letting the magnetic field pass through, thus, making it better and forceful.

Validity of hypothesis based on the outcomes

It was hypothesized that changes in coil density would bring changes in the electromagnetic field. The hypothesis became valid based on the above data and findings since the table showed that at unit 5 of coil density, the electromagnetic field was 0.0000628 Tesla. In contrast, when the density was increased to 6, the field became 0.0000754 Tesla. Thus, a slight but clear increment in the electromagnetic field was observed, and the same pattern was observed by a constant rise in the coil density. It should be noted that the current (controlled variable) was kept unchanged, which was at 1.