These problems and exercises check for comprehension of current; Ohm’s law (resistance & simple circuits); resistance & resistivity; electric power & energy; alternating current versus direct current; electric hazards & the human body; and nerve conduction—electrocardiograms. Advanced Placement® and AP® are trademarks registered and/or owned by the College Board, which is not affiliated with, and does not endorse, this textbook. Click on link to view answers.