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Objective: To use the relationship between electric power and the variables that affect it (current, resistance, and voltage) in order to compare the power of two simple circuits from given I, R, and ∆V information.

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Case Studies: Electrical Power

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Pick from among the three difficulty levels -  Apprentice, Master, and Wizard.

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Apprentice Level 6 Questions Given only 1 difference between two circuits, identify which has the greatest power (or bulb brightness).

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Master Level 6 Questions Given 2 differences between two circuits, identify which has the greatest electric power (or brightest bulb).

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Wizard Level 6 Questions Quantitatively compare the electric power of two circuits when given I, R and ∆V information.

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Tap buttons below to select or deselect an answer to … Which circuit has the brightest bulb? (i.e., the greatest power). Tap the Check Answer button when satisfied with your answer.

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… by a factor of:

The electric power (P) is greatest for circuit:

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