EEI- EXTENDED EXPERIMENTAL INVESTIGATION

EEI- Extended Experimental Investigation



Table of Content

Table of Content2

Abstract4

Introduction5

Hypothesis5

Aim6

Equipment List6

Results7

The Fundamentals7

Results Analysis9

Definition of the Directed Boundary of an Oriented Surface9

Discussion12

Error Analysis13

Conclusion15

Abstract

The article presents a methodology for teaching the basics of magnetism in which concept-centred experiments (CCEs) made in a home workshop form an integral part. The author has first presented a brief review of the basic principles of magnetism followed by the CCEs that may facilitate this learning process. He has mentioned four experiments, one of which had been published earlier. After a cursory reference to that experiment the author has presented details of the other three experiments, the concepts they illuminate, and the data obtained from these experiments.

EEI- Extended Experimental Investigation

Introduction

Over the last two decades we have been contributing low-cost concept-forming physics experiments in the areas of mechanics and electromagnetism, most of which had been published in this journal. A round-up of these experiments was also published in this journal under the title "Concept-Centred Experiments in Physics" (CCEs). The present article is a continuation of that dialogue. In this article we would like to present a combination of CCEs and theory that a teacher at the +2 or college level may find useful in his classroom teaching of the fundamentals of magnetism.

Hypothesis

A methodology for the basics of magnetism in which extended experimental investigation (EEI) can be done.

A methodology for the basics of magnetism in which extended experimental investigation (EEI) cannot be done.

Aim

Aim of this experiment is to present EEI- Extended Experimental Investigation in which we design an experiment involving magnetism.

Method

For this research we have chosen qualitative research methods this type of research methods is a type of scientific research. In general terms, scientific research consists of an investigation that:

• seeks answers to a question

• Systematically uses a predefined set of procedures to answer the question

• collects evidence

• produces findings that were not determined in advance

• produces findings that are applicable beyond the immediate boundaries of the study

Qualitative research shares these characteristics. Additionally, it seeks to understand a given research problem or topic from the perspectives of the local population it involves. Qualitative research is especially effective in obtaining culturally specific information about the values, opinions, behaviors, and social contexts of particular populations.

Equipment List

Use of Biot-Savart's Law in (a) and (b); Ampere's Law in (c).

Application of Ampere's Law for computing B

Current Carrying Conductor

Solenoidal compass and its accessories

UGC

Schematic Design Of The Apparatus

A photograph of the apparatus

Schematic design of the apparatus

Coil” Apparatus

Swinging Coil

Rectangular Coil inside Rectangular Solenoid

Results

The Fundamentals

We shall review what we consider to be the fundamentals in the theory of magnetism.

Figure 1. Explaining: Biot-Savart's Law in (a) and (b); Ampere's Law in (c).

Fundamental 1. Magnetism originates due tothe flow of electric currents, which can be externally manifest (i.e., measurable with a meter) as in conduction currents flowing in a metallic wire, or can be internal currents, effectively due to the orientation of the spin and orbital angular momenta of the atomic electrons, as in the case of magnetized ...