By Melissa Williams


There are many times you wish to a specific device of your own to reduce volumes or any measurements of your concern. An example could be your audio equipment, deflections in a cantilevered stairway, or even the noisy tachometer of your motorbikes. For these adjustments, you may opt to use a potentiometer which is a variable resistor.

This type of circuitry is of great aid when wanting to divide volumes of voltages sent. To simplify, the specific device that you should have is called a voltage divider. This happens to be one of the most fundamental circuits you will be dealing with in the field of electronics.

With three variables namely two resistors and an initial voltage, you can already turn a large Volt count into a smaller one which is considered as the output Volt. To simplify this, you could understand the process better using a certain equation. This equation is basically a representation of the Ohms law which observes a direct proportion relationship between a current and the difference of ends. Having said so, it is understood that as the current is reduced by the attached divider in between two resistances, the voltage released is also lowered.

There are two essential parts of this divider, one is the circuit and the other is the equation. The circuit pertains to a source of the Volt which goes across two resistors. For the equation, you have to assume three values namely input voltage, resistor one R1, and resistor two R2. The output value could be found by taking the ratio between R1 and R2.

Knowing these essentials, you may realize that you can also create your own portable divider. For this, you have to prepare the leads, resistors, alligator clamps, snap on connectors, a voltmeter and a standard 9V battery. This is the highest possible amount of V a simple electronic can handle. Some would limit it to a 5V only.

Begin by connecting the leads with an alligator clamp. One should contain the red lead resistor with 10 Ohms and the other should contain the black one which has 20 ohms. Then after connecting these leads, use the free end to twist these two together.

Make sure that you have provided a solid twist for it by clamping an alligator clamp on it. Then look at the positive and negative terminals of the battery. When found, attach the red wire to the positive and the black wire to the negative. Then turn your meter on.

The positive voltage terminal of your circuit would be the connector which holds the twisted resistors together in place. On one hand, the negative terminal retains to be the negative source. Using the given equation, the new Volt count of your 9V battery goes down to 3V.

Before going through this procedure, unhook the end of the divider. In some case, you have to unplug your battery to avoid draining. For this procedure, your 9V energy source does not really show a lot of danger. But, when working with some other electronics, make sure to unplug the wires from wall outlets as this may cause electrocution.




About the Author:



Axact

Money Making

I am passionate about educating university students about money and careers, and have been doing so since 2007. I see the same confusion and mistakes being replicated every year. The way I help is through Save the Student. I'm always on the look out for new contributors, so get in touch if you're wanting to get involved! Aside from the site, my main interests are travelling, writing, photography, webdesign, sailing, football and cycling.

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