Robotics and Electronics Tutorial - 10 - Building a Circuit
Loading...
Link to this comment:
Top Comments
All Comments (91)
-
FYI all of the current does still go through the LED. Current in series is the same. The reason you put a resistor in series with the LED is so there will be a Voltage drop. Power = VI, so because there will be a drop in voltage (due to the resistor), the power disapated by the LED will be less. If you had the LED hooked directly up then ALL of the power disaapated by the circuit would be through the LED and that could cause it to burn out.
-
I think there is a lack of intermediate videos on the subject of LED's, Different colors have different voltage drops as well as different current ratings for ideal performance, and these differences should be taken into account when calculating a proper resistor value. Subtract the LED voltage drop from the supply voltage, and then divide the remaining voltage [which is the voltage drop across the resistor] by the ideal LED current, Rt = (Vt - Vled) / Iled.
-
Hey! we are so much interested in this area. Can you please make more tutorial for us?
-
u helped me out,thanx
-
If i was taking a formal class it would have taken a week to get to this point.
-
As far as my knowledge, electrons flow from -ve to +ve, in this case u must place resistor on +v or cathode side(blace wire side), there is something really wrong with this experiment isn't it ?
-
yo man could u gimmi yo email id?
-
@TheHoho001 - Ah, you are correct. Thank you.
1:43
Robotics and Electronics Tutorial - 11 - LED's Gone Badby thenewboston24,466 views- 4:35
Robotics and Electronics Tutorial - 9 - Choosing LED'sby thenewboston21,262 views
- 3:29
Robotics and Electronics Tutorial - 12 - Measuring Voltageby thenewboston22,369 views
- 3:21
Robotics and Electronics Tutorial - 1 - The Multimeterby thenewboston57,241 views
- 3:18
Robotics and Electronics Tutorial - 13 - Measuring Currentby thenewboston25,385 views
- 3:10
Robotics and Electronics Tutorial - 4 - Testing the Batteryby thenewboston23,637 views
- 2:27
Capacitor Replacement Tutorialby Afrotechmods610,261 views
- 4:48
Robotics and Electronics Tutorial - 5 - Alligator Clipsby thenewboston22,940 views
- 2:22
Robotics and Electronics Tutorial - 3 - Choosing a Batteryby thenewboston29,132 views
- 2:23
DIY automatic light regulatorby ChipDipvideo44,950 views
- 1:28
how to build a easy robotby akhilakhilakhil3605,147 views
- 8:58
How to Make an Easy Electronic Ignitorby ChuKoNu1297,917 views
- 2:42
Transistor Switchby ChipDipvideo140,307 views
- 2:18
Mousey Robotby Carbumbio796,913 views
- 1:36
How to make your own robot!by CoyoteEngineering332,133 views
- 9:59
How to Build a Great Homemade RC Airplane Really Cheapby spear913769,829 views
- 1:06
Electrical Circuitsby visuallearningco70,729 views
- 6:28
Voltage regulator tutorial & USB gadget charger circuitby Afrotechmods253,643 views
- 8:00
Remote Control Robot Tutorialby palmisano140,907 views
- 1:02
How to make a simple circuitby pbekic001s4,882 views
this is not plumming dude. it doesn't work that way. it is irrelevant where the resistor is as long as it is in the circuit. Ohms law states it clearly
cyberlord64 2 years ago 18
@crazeycane - For maximum life, the LED should run around 25milliamps. Knowing your voltage, 9v, and your amperage = .025amps, you can use ohms law to calculate R=V/I or 9/.025 = 360ohms
Hope that helped.
BackyardAmusement 11 months ago 6