A.S. Physics Investigations

A.S. Physics Investigations Aim The aim of the investigation is to find come out the potential and internal resistance of a cell. Apparatus Resistors (values: 10?,20,30?,39?,51?,62?,68?,82?,91?,100?) Connecting telegraphs Multimeters, measuring stream and Voltage Cell Crocodile Clips Circuit draw [pic]Fig 1 Safety With the use of a 1.5V cell, it is very dangerous, as shocks may occur if equipment is not handled with care. The heat produced by the wire is overly very hazardous ca development overheating, given that the stretch out departure through it causes it to heat up and may mayhap be very dangerous. In order to prevent this, I pass on be leaving 10s in among readings allowing components to cool down. Variables I go away be changing the unfold electric resistance, modern, final stage p.d and temperature. Since mending the load resistor will possess an effect on the p.d and current, furthermore the temperature would have to be controlled as increased current raises the resistance and causes inaccuracy. In order to control the variables, I will be using the same cell, allowing a stable bring home the bacon of potential drop and current. In addition I will be go off the cell between readings for 10s, avoiding heating up of components and tenia changes to the internal resistance.

Moreover I will suck with bigger resistors, reducing draining. Lastly I will handbill the potential before and after the experiment, to assure the precision of the cell. Method prototypic I will set up all Components (under Apparatus) bring as shown o n fig 1. In order for this investigation to ! be a fair test, I will discipline forth the variables (shown above) to achieve an accurate investigation. subsequently building the duty tour (fig1) I will step the emf of the cell when the circuit is open, and measure it after the investigation. This would give me an idea of the draining of the cell. After that I am going to find out the current and the terminal p.d of the cell. I will be changing the load resistors (R) with...If you privation to get a full essay, order it on our website: OrderCustomPaper.com

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