Electricity and Ohm's Law

 On Monday Power Comes in Many Forms was shown to provide the segue into voltage and current on Wednesday. Fall 2025 the class did not make it to see the solar panel output display, so this term everything was done on the Smartboard using the presentation. This permitted moving through the material more quickly. 

The solar panel display, however, is down yet again. This time partially down. I never had the chance to show the students. But the Watts per square meter is still available. 


An earlier image provides conversion capabilities. 0.89 kW/m² generates 102.7 kW of DC with 96.5 kW of AC output. So 1.08 kW/m² would generate 124.6 kW. The loss on conversion to AC is 6.04 percent. 124.6 kW of DC input produced 117 kW of AC power on the output side at a loss of 6.04%. Enough to run roughly 15 cup 117 rice cookers

Thursday dawned aa a fourth cloudless day with moisture still hanging in the morning air.

Alisha enters data, Meraia sets up the next circuit 


Jaysleen tests for the voltage across the load observed by Stacy, Darlene, and Lidy-Loreen.


Leona connect a 1.5 volt dry cell to the circuit, Jemira assisting 


Eytriann observing as Moira sets up to measure the voltage

McGievens changes the scale on the multimeter 

Mor-Jacinta records the data

Eytriann attaching another alkaline cell

Data in Desmos 

One hundred ohm resistor


This laboratory continues to go well. I think the equipment could be expanded by an additional Ohm's law kit or at least additional breadboards and other resistances. The supplementing of the original multimeters should also continue. This term the laboratory ran a little longer as the report was modified to include a native table in Google Docs. An AI LLM based feedback system is being tested in this laboratory, AIF in Moodle. 

The laboratory went to 10:50 with clean-up taking until 11:20.


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