galvmotors

galvmotors - Note-A-Rific: Galvanometers & Motors A...

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Note-A-Rific: Galvanometers & Motors A galvanometer is a device used to measure a small current (it can be used to make either a voltmeter or ammeter) If we were to look down on a galvanometer it would look like this. .. I’ve coloured the wire segments to make it easier to follow our analysis of the forces on the different sections. In this picture there is a single loop of wire (in a rectangular shape) inside the magnetic field. Usually a galvanometer is made by winding the wire up as a coil around a light weight rectangular frame many times. One end of the wire will be connected to positive, the other to negative. o Just to make it interesting, let’s do this problem assuming that we are using conventional current. o This just means we will be using right hand rules… your answers for electron flow would be using left hands. When a conventional current starts to flow. .. What is the force exerted on the wire at point (a)?
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galvmotors - Note-A-Rific: Galvanometers & Motors A...

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