1st year of post-compulsory secondary education
Electric current
J.L. San Emeterio
EC Unit
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Starting with its similarity with a hydraulic supply circuit, we intend to sketch the most important characteristics and laws related to an electric circuit.

We will assume from the start, that the student understands the concepts of charge, field and electric potential covered in the unit on electricity. If this is so, then you can proceed. If not, we suggest you first study the chapter on Electricity. 

Click on next to see the objectives we propose in detail.

 

 

 

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Ministerio de Educación, Cultura y Deporte

 

The concept of a circuit
The hydraulic simile
Elements in the circuit
Characteristic magnitudes
Conclusions
Laws and basic magnitudes
Ohm's law
Power and energy in the circuit
The generalization of the laws
Conclusions
More complex circuits
The arrangement of resistances
The arrangement of generators
A combined circuit
Conclusions
Evaluation