We did a lab studying resistance and Ohm’s Law. In my lab, my light bulb circuit element did not obey Ohm’s law b/c my data did not convey a proportional relationship between voltage drop and current. How do I If either or both of your circuit elements did not obey Ohm’s Law, can you think of any reasons for the non-ohmic behavior? In other words what might be happening to one or both of the elements as the applied voltage drop increases

the relationship between the voltage and the resistance is linear,

light bulb.   a lot of energy to be in the system in the form of electromagnetic radiation and heat, this loss of energy is the cause of the loss of the linearity of ohm's law.

Explanation:

When you study ohm's law

         V = i R

You observe that the relationship between the voltage and the resistance is linear, so the law of compliance, when you used a resistor, the law was fulfilled, the resistor did not heat up significantly.

When you used the bulb, the resistance values is small, so the passing current is high and the filament heats up significantly, to the point of emitting light, so the resistance can linearity. This is because the collisions between the electrons and the atoms is very frequent creating excitations and de-excitations that cause a lot of energy to be in the system in the form of electromagnetic radiation and heat, this loss of energy is the cause of the loss of the linearity of ohm's law.