Ch. 19: Electrical Fields & Capacitors
Reading
BJU Physics Ch. 19
AP Classroom: We will continue with practice tests. Time yourself.
The Big Ideas
Labs
BJU Physics Ch. 19
AP Classroom: We will continue with practice tests. Time yourself.
The Big Ideas
- An Electric Field can be visualized by plotting the paths of a hypothetical positive-charged particle placed in the vicinity of one or more charged objects.
- The electric field strength is E = kQ/d^2. The units are Newtons.
- Volts is potential-energy per Coulomb: V = J/C. A 1-Volt potential stands ready to do 1-Joule of work on a 1-Coulomb particle, moving it against an electric field.
- Capacitors store electric energy in the form of an internal electric field.
- A capacitor blocks direct current, but passes alternating current. The higher the frequency, the more current passes through a capacitor. This is the opposite effect of a coil. More on that in Ch. 22.
Labs
- Capacitor circuit-build lab
- Solar Design Project
- Capacitor Weblab
| 19._electric_potential_and_capacitors_lecture.docx |
| 19._fields_and_capacitors_MCQs HELPS |
Capacitor lab (R-C Circuits lab)
| 11._capacitor_lab_handout.pdf |
| capacitor_lab_report_instructions__r-c_circuit_build_lab_.docx |
| 19._capacitor_lab_stud_example_matthew_h..pdf |
Capacitors weblab
| 14._capacitor_weblab_rev_2024.docx |
| 19._capacitor_weblab_student_example_huebscher.pdf |
| 19._capacitor_weblab_student_example_strouse.pdf |
(Optional) Solar Power Design problem
| Solar Power Design Problem instructions.docx |
Below: Question - what are the drawbacks with replacing your car battery with a bank of capacitors???