By Melissa Williams


Working with music or a recorder may impose a lot of concerns specifically on its volumes. For example, when doing a voice over, your recorded audio may be overpowered by a background music. To settle the needs for this adjustment, you should have a device that is deemed as a variable resistor. This device may also be applicable if you would like to take measurements for deflections on performing centers or when you wish to reduce the noise you are experiencing in your motorbike.

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.

The Ohms law is used to understand the result of this device. It states that current flowing in a conductor is proportional to the difference between its ends. Meaning, if the current is reduced, then the Volt is also reduced.

This divider has two main parts namely the circuit and the equation. To make it work, first, you should secure a circuit by putting in two resistors together. The equation, on one hand, allows you to calculate the output after you have found the ratio of both resistors while considering the input volt as another variable.

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.

Start by connecting one lead to a red lead of a 9V battery with an alligator clamp. Then using another lead, do the same steps but this time using the black lead of the connector. After, you can twist the free end of each resistor together.

Putting together the two leads. Twist together both lead ends and lock it up using the last alligator clamp. After doing so, take the connector of your voltmeters then do the correct terminal placing. Red wires go to the positive terminal of your battery while the black wires refer to the negative one. Then you can start turning your meter on.

The new positive terminal. After having a new set up for your circuit, the positive terminal will now be the connector which is attached to the twisted part of the resistors. However, the negative terminal remains the same. Using the Ohms law, you will understand how a 10 ohm resistor and a 20 ohm resistor with a 9V energy source will now have a new output charge of 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.




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