Question

-Give an example of an experiment from your field of study where a pattern in data...

-Give an example of an experiment from your field of study where a pattern in data is used to construct a mathematical relationship.

-Discuss how plotting data can help you identify the relationship between the current through the resistor and the potential difference across it.

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Answer #1

From Ohm's law  

the current throw the resistor is proportional to the potential difference between the ends

tha is  

which is like a equation of a straight line y = mx , where m is the slope of the line

same way the term R is slope which is resistance

as we increase the potential difference across the ends the current is also increases , keeping the resistance constant and temperature conditions also .

ploting the graph V vs I ,taking V on y axis and I on x axis we get the straight line passing through the origin

between any two points we can measure the slope which is equivalent to the resistance of the resistor

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