L.P.

L.P Please give the other pics as well of the G2g!

abhijeet080808@gmail.com

Just ask the shop keeper for HI brightness LEDs.. will cost around 5bucks per LED and are enough for the tail lights...

So, let me know how is the lesson, up to now! What is left yet, is to calculate the resistance value we need to use with any LED.

Part 2 -

So, what is resistance now? Going back to the pipe analogy, it can be seen that if the pipe is made narrower, the force on the water increases and vice versa. So, there is a relation between the force and flow for a particular pipe. Change the pipe, this relation changes. This is called the resistance of the pipe. Resistance is what defines the relation between the voltage and the current.

That is - R = V/I.

Just like a pipe, a electrical conductor will have a resistance value. Just as a blocked pipe has infinite resistance, so is the case with a (perfect) insulator.

So, coming back to the LEDs and the resistors, here is the funda. A LED operates under certain voltage only. If we give it more that that, it will die. So, we can not feed it the 12V that a bike's battery provides.

In the pipe analogy, we have to choke the pipe at some point to decrease the force. That is what a resistor does. It acts as a well, resistance!

Part 1 -

Ah, well. Let's start with the basics then. A good analogy to electricity is water flowing down a pipe. The force of the water is the 'voltage' and the amount of water flowing down the river at a particular point is the 'current'. So, a pipe can only flow so much water. If you want more water, there are 2 ways - increase the force of water (voltage) or else, increase the flow, ie - use a bigger pipe.

Another analogy would be wrt a engine. The torque is the 'voltage' and the rpm is the 'current'. When these are combined, we get the total power. Want more power? No problemo! We can increase the torque produced at a particular rpm. Else, we can make the engine rev sky high!

So, as you may have got it by now, total power is dependent on both voltage as well as current.

If you go through the thread, most of the required info is given there. If you don't understand something, just ask me. I will try my best to explain it to you. Only skill you really need is the ability to solder the LEDs on the board. Rest all can be acquired over messages!

Thanks bro... Let's see...

Oh... you mean that accident?
Yeah, it was 3 Aug 2010 night, someone was travelling without headlights on an intersection, he was going from my right to left...
I was travelling at some 35-40 and couldn't see him and banged into him. My right arm fractured.

It has a steel rod inside now, through an operation. It's recovering somewhat fine, and I can still ride bikes and do light/ medium work...

Another operation will happen to remove the rod on maybe Jan or Feb '12.

What happened bro? Didn't get your point?

Abe buddha ho raha hun... samajh mein nahi aata tu kya bol raha hai

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