Articles — Physics

This report provides insight into the magnetic phenomenon of Hysteresis. Hysteresis is defined as a retardation effect where the magnetisation of a magnetic material lags behind the magnetizing force. Here we will explore the hysteresis loop for a silver steel ferromagnet and use this to discover it’s magnetic properties. The method used will be to place a ferromagnet inside a solenoid with an alternating voltage which will continually reverse the magnetic field and magnetism direction. The relation between these two quantities will be used to produce a hysteresis loop from which magnetic properties can be deduced. The results obtained were: saturation magnetisation = (8.4±0.5)(105)Am-1; remnant magnetisation = (5.9±0.5)(105)Am-1; coercive field: (4.3±0.5)(104)Am-1; energy expended per cycle per unit volume of material: (1.55±0.05)(103)Jm-3s-1; energy product: (8.7±3.0)(104)Jm-3.

Template for students in physics at Reykjavik University.

Experimentalphysik 6: Festkörperphysik

Experimentalphysik 6: Festkörperphysik

Experimentalphysik 6: Festkörperphysik

Se calculó la eficiencia real y de Carnot de un Aparato de Eficiencia Térmica (Model TD-8564).

Trabalho experimental de determinação da Constante de Planck e do comportamento de Corpo Negro para um filamento de Tungstênio a partir da determinação de temperatura por resistência e por radiação eletromagnética.

Objetivos: Estudo do movimento oscilatório, oscilações livres não amortecidas e amortecidas, e oscilações forçadas e amortecidas.

Detailed notes