Differences

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--- demonstrations:5_electricity_and_magnetism:5c_capacitance:big_bang_capacitor:start [2019/04/03 23:07] – demoroom
+++ demonstrations:5_electricity_and_magnetism:5c_capacitance:big_bang_capacitor:start [2019/05/16 20:03] (current) – demoroom
@@ Line 3: / Line 3: @@
 {{tag>electricity_and_magnetism capacitor capacitance energy high_voltage arc potential unlocated}}
-<WRAP box right>
+<WRAP box right> {{:demonstrations:5_electricity_and_magnetism:5c_capacitance:big_bang_capacitor:big_bang.jpg?400|big_bang.jpg}}
-{{Big_Bang.jpg?400|}}
-// //
 </WRAP>
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 Discharge a capacitor charged up to 1kV with an impressive 'bang!'. This effectively illustrates how energy can be stored with capacitors, this can also be used to talk about RC circuits (an example of an RC circuit with a very short time constant).
 Also provides an exceedingly effective method to wake up drowsy undergrads.
 ===== Apparatus =====
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   - Next, remove the leads from the capacitor by pulling the attached strings. Take utmost care in this step; pull them off the terminals in a way that guarantees they have no chance of touching you. Place them on the ground away from each other.
   - Turn off the power supply.
-  - Here's the fun part: Put on your eye and ear protection and use the discharge wand to discharge the capacitor.((You may want to do this by placing the discharge wand on one terminal, angled up so you can drop the other side onto the terminal.)) Feel free to perform a bit, do a dramatic count-down before you discharge the capacitor.
+  - Here's the fun part: Put on your eye and ear protection and use the discharge wand to discharge the capacitor.((You may want to do this by placing the discharge wand on one terminal, angled up so you can drop the other side onto the terminal.))  Feel free to perform a bit, do a dramatic count-down before you discharge the capacitor.
   - Make absolutely certain that the capacitor is discharged, then immediately replace the wire short across the terminals. Make sure the connection is good!
 ===== Notes =====
-Any time you're about to touch the leads be sure to short the terminals together multiple times immediately before doing so. If you charge it up to 1kV, discharge it, and come back a couple minutes later to place the short wire on the terminals, you may recieve a nasty shock! [[wp>Dielectric Absorption]] is responsible for this. If the capacitor is left un-shorted for any amount of time, it's healthy to assume it has some charge stored.
+Any time you're about to touch the leads be sure to short the terminals together multiple times immediately before doing so. If you charge it up to 1kV, discharge it, and come back a couple minutes later to place the short wire on the terminals, you may recieve a nasty shock! [[wp>Dielectric Absorption|]] is responsible for this. If the capacitor is left un-shorted for any amount of time, it's healthy to assume it has some charge stored.
-<WRAP danger>
+<WRAP danger> **You must**  get assistance from demo room staff if you have not operated this demo before.
-**You must** get assistance from demo room staff if you have not operated this demo before.
-**It requires high voltages and can be dangerous if not done correctly.** Please wear ear and eye protection.
+**It requires high voltages and can be dangerous if not done correctly.**  Please wear ear and eye protection. </WRAP>
-</WRAP>
-<WRAP group>
+<WRAP group> <WRAP half column>
-<WRAP half column>
-</WRAP>
+</WRAP> <WRAP half column>
-<WRAP half column>
-</WRAP>
+</WRAP> </WRAP>
-</WRAP>
+<WRAP box> <WRAP centeralign> // Demo room information //  </WRAP> <WRAP tablewidth 100%>
+|**Location** |—-|
+|**Maker** |Unknown|
+|**Current State** |Working|
+</WRAP> </WRAP>
+\\
-<WRAP box>
-<WRAP centeralign> // Demo room information //
-</WRAP>
-<WRAP tablewidth 100%>
-| **Location** | ---- |
-| **Maker** | Unknown |
-| **Current State** | Working |
-</WRAP>
-</WRAP>