Discovering Ohm's Law



Through a handful of activities using simple circuits and a multimeter for measuring values, students discover the relationship between volts, amps, and resistance, rather than simply being given an equation and worksheet. Includes hands on circuit building, with graphing of results.


1 Class Period (depending on students ability to complete graphs)
60 Minutes

Industries / Subjects / Grades

Industries / Pathways
  • Engineering & Architecture Engineering & Architecture

Standards and Objectives


California Academic Content Standards (3)
California's 2008 CTE Standards (5)

Related Instructional Objectives (SWBAT...)

  • Students are able to analyze relationships between voltage, current, and resistance in direct current (DC) series circuits by physically constructing them and graphing results.
  • Students are able to use multimeters to analyze, repair, or measure electronic circuits.
  • Students are able to analyze and predict the effects of circuit conditions on the basis of their graphed measurements and calculations of voltage, current, and resistance.
  • Students are able to calculate loads, currents, and circuit-operating parameters of simple DC series circuits they have created.
  • Students are able to demonstrate and apply their knowledge of electrical circuits through the creation of functional series circuits and graphs representing the relationships involved in Ohm's law.

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