Barışta, Yeşim (2015) Investigating the effect of passing current on the oscillation period of an electric circuit placed in magnetic field. Other thesis, TED Ankara Koleji.
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Abstract
This essay, intending to demonstrate the real life application of right hand rule, is formed by combining magnetic field and electric circuit. The experiment was designed to answer the major question of “How does changing the current passing through an electric circuit, which is placed between two square magnets, affect the period of oscillation of the resistant steel wire?”. After the required set-up was constituted by setting up an electric circuit and magnetic field, the investigation was carried out in two parts. In part 1, the current was set in a specific direction to create an upwards magnetic force acting on the resistant steel wire. The current was altered until the upwards magnetic force cancelled out the downward gravitational force. When the two opposite forces were equal, the current was measured and recorded. Necessary calculations were made to find the value of magnetic field . In part 2, the direction of current was reversed and a downward magnetic force was obtained, strengthening the downward gravitational force. For nine different values of passing current, the resistant steel wire was disturbed from its equilibrium position and made to oscillate as a simple pendulum. The time the steel wire took to complete three laps was measured for each of the nine values of passing current and periods of oscillation were determined. Later, several formulas and equations were used to calculate theoretical periods of oscillation. Finally, the measured and theoretical values were analysed and compared. The relation between the current passing through an electric circuit and the period of oscillation of the resistant steel wire was determined. Both measured and theoretical periods of oscillation turned out to be resembling a similar general pattern. In conclusion, it was found that the period of oscillation of steel wire decreases with increased current passing through the circuit.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | Candidate’s Advisor: Mehmet Bozkurt, IB Notu: D |
| Uncontrolled Keywords: | electric circuit, magnetic field, oscillation period |
| Subjects: | Q Science > QC Physics |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 27 Aug 2015 10:19 |
| Last Modified: | 27 Aug 2015 10:19 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/699 |
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