Curated OER
Magnetic Fields, Magnetic Forces, and Electromagnetic Induction Sample Problems
After high schoolers have learned about electromagnetic induction, they can solve these 10 practice problems. They calculate magnetic field strength, magnetic force, electromotive force, and output voltage. This is a choice option as a...
CK-12 Foundation
Ck 12: Internal Resistance of a Battery
[Free Registration/Login may be required to access all resource tools.] Batteries have both an ideal internal voltage and a terminal voltage, which is less due to internal resistance. This lesson presents sample problems and a video...
Concord Consortium
Concord Consortium: Using a Function Generator
See how a typical DC power supply provides a variable voltage source for DC circuits.