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To find which of the circuits, shown below, are most suitable to measure a range of resistances, which the meters (the voltmeter and the ammeter) could be used to measure.
Member rating: No Rating | Words: | Submitted: Wed Sep 17 2003
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How do I connect this Voltmeter? Aim To find which of the circuits, shown below, are most suitable to measure a range of resistances, which the meters (the voltmeter and the ammeter) could be used to measure. Prediction I did not know which circuit would be the most accurate, to start with so I did a preliminary investigation, which consisted of setting up the two circuits above and then just putting two resistors in each and working out the required resistance. I did not see at the time that different value of resistance would make much of a difference until I commenced with my calculations. I discovered by using resistance values of 2200? and 4700?, that Circuit Two was better. Circuit One 2200? = 2105? by meter readings 4700? = 4364? by meter readings Circuit Two 2200? = 2222? by meter readings 4700? = 4600? by meter readings As you can see from these initial findings Circuit Two is the...
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