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demonstrations:5_electricity_and_magnetism:5c_capacitance:super_capacitor:start
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demonstrations:5_electricity_and_magnetism:5c_capacitance:super_capacitor:start [2019/02/14 23:33] 127.0.0.1 external edit |
demonstrations:5_electricity_and_magnetism:5c_capacitance:super_capacitor:start [2020/01/28 18:12] (current) demoroom |
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| ====== Super Capacitor ====== | ====== Super Capacitor ====== | ||
| - | {{tag> needs_review untagged unlocated}} | + | {{tag> capacitor untagged located}} |
| <WRAP box right> | <WRAP box right> | ||
| Line 11: | Line 11: | ||
| ===== Description ===== | ===== Description ===== | ||
| - | 1 Farad | + | The demonstration has a variety of high-value capacitors that can be used for various purposes; in demos requiring capacitors or to just give an example of what capacitors look like. |
| + | The capacitors pictured, from left to right, back row then front row have the following values: | ||
| - | + | * 10mF 75V | |
| - | Large and Small 1 Farad capacitor. Can be charged and discharged with hand crank. Small Capacitor can be used to light a flashlight. | + | * 4.2mF 650V |
| + | * 110mF 15V | ||
| + | * 1µF 20,000V | ||
| + | * 2700F 2.5V | ||
| + | * 1F 5V | ||
| ===== Purpose ===== | ===== Purpose ===== | ||
| + | Demonstrate the properties of capacitors, their construction and general appearance, and the variety of form factors and values they can have. | ||
| ===== Apparatus ===== | ===== Apparatus ===== | ||
| + | * Capacitors | ||
| ===== Setup ===== | ===== Setup ===== | ||
| + | Varies. You can simply show the capacitors, set them up as part of an RC or RLC circuit with the [[demonstrations:9_equipment:oscilliscopes_and_function_generators:oscilloscope:start|oscilloscope]] to show their properties or measure time constants, or charge them up and then discharge them to power something/ make a spark. | ||
| ===== Notes ===== | ===== Notes ===== | ||
| + | <WRAP center danger 60%> | ||
| + | ** Danger:** Capacitors, particularly the very-high voltage ones, can store a dangerous amount of charge at a dangerously high potential. If you encounter a large-valued capacitor without properly connected shorting leads, assume it is dangerously charged until proven otherwise. | ||
| + | |||
| + | Capacitors can develop a surprisingly large charge a time after being discharged due to **[[wp>dielectric absorption]]**. | ||
| + | </WRAP> | ||
| Line 47: | Line 57: | ||
| </WRAP> | </WRAP> | ||
| <WRAP tablewidth 100%> | <WRAP tablewidth 100%> | ||
| - | | **Location** | ---- | | + | | **Location** | O2 | |
| | **Maker** | Unknown | | | **Maker** | Unknown | | ||
| | **Current State** | Working | | | **Current State** | Working | | ||
demonstrations/5_electricity_and_magnetism/5c_capacitance/super_capacitor/start.1550187203.txt.gz · Last modified: 2019/02/14 23:33 by 127.0.0.1
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