Perform an experiment where you adjust the voltage level on the power supply and

Question

Perform an experiment where you adjust the voltage level on the power supply and measure the resulting current through the resistor to graphically determine the resistance of your resistor.

1. In such an experiment, what is the independent variable in Equation V=IR

2. What is the dependent variable in Equation V=IR

3. What type of equation (linear, quadratic, exponential, etc.) is this?

4. How can you plot the data to perform a curve fit and find the resistance? Include a sketch and equations showing how your curve fit coefficients will be used to experimentally determine R.

Explanation / Answer

1) in V=IR

resistance is independent variable.

It is depend on material amd lenght of wire.

2) in equation V=IR

VOLTAGE AND CURRENT IS DEPND ON EACH OTHER.

3)IT IS A LINEAR EQUATION.

V PRAPOSNAL I

If we increase voltage then current is also increase linearly.

4)tan( thita) = V/I

R = V/I

THE GRAPH IS LINEAR.

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