This physics video tutorial provides a basic introduction into the electromotive force generated by a battery. The electromotive force is a voltage source that increases the electric potential energy of the charges in the circuit that allows it to do useful work. Resistors, on the other hand absorb energy from the circuit and reduces the electric potential energy of a charge as it moves through the resistor causing a voltage drop. This video the difference between the electromotive force of a battery and the terminal voltage across a resistor connected in parallel to a battery. The terminal voltage is always less than the electromotive force of a battery due to the internal resistance of the battery.
Physics Video Lessons:
https://www.video-tutor.net/physics.html
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Electric Current in Circuits:
https://www.youtube.com/watch?v=r-SCyD7f_zI
The Electric Battery:
https://www.youtube.com/watch?v=xrf6I_5vX64
Ohm's Law Problems:
https://www.youtube.com/watch?v=NxxNu9Cek1E
Resistance and Resistivity:
https://www.youtube.com/watch?v=PIJTu8z0-_U
Resistor Color Code:
https://www.youtube.com/watch?v=G1mZutobxDU
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Internal Resistance of a Battery:
https://www.youtube.com/watch?v=R1QN_0fcZ_8
Drift Velocity and Current Density:
https://www.youtube.com/watch?v=KiTkSZy79cw
Potential Difference Between Two Points:
https://www.youtube.com/watch?v=vcbkvYDP5a8
Alternating Current Vs Direct Current:
https://www.youtube.com/watch?v=ERIToctYUcQ
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Schematic Diagrams & Symbols:
https://www.youtube.com/watch?v=Dl1gFBNa0Ik
Open, Closed, and Short Circuits:
https://www.youtube.com/watch?v=v5RJf_V0LYA
Resistors In Series:
https://www.youtube.com/watch?v=9z53qVQjasU
Resistors In Parallel:
https://www.youtube.com/watch?v=SYrOiQs3X2U
Physics PDF Worksheets:
https://www.video-tutor.net/physics-basic-introduction.html