Do you ever wonder how much of what we do you could figure out from scratch? Tying your shoe might seem simple now, but kids have trouble mastering the skill, and dreaming it up for the first time is ...

For each pair of results calculate the resistance, R using \(R = \frac{V}{I}\). Record your results in the third column of the table. Plot a graph of voltage, V on the y-axis v current, I, on the ...

We can see from the graph that as the current increases the voltage also increases. This agrees with our prediction. In fact, since the line of best fit is a straight line through the origin, we can ...