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Basic Knowledge On How A Voltage Divider Works

By Melissa Williams


When you are designing a piece of audio equipment, one of your major concerns is how you get to regulate or control its volume. In this case, a potentiometer which is a variable resistor may be used for specific adjustments. The device used in this situation helps you gain controls for any variable.

With an understanding of how circuitry and an equation works, you can make use of a device that could help regulate the voltage amount of the audio equipment or other electronics. A voltage divider is a passive type of line that produces an output value. This value is the lowered amount of initial voltage.

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.

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.

Though you can buy your own device, creating a portable one can be a better choice as it helps you save. For this, you have to secure leads, resistors, a 9V battery, alligator clamps, voltmeter and its connectors. In addition, you have to ensure that you get at most the standard battery voltage which is 9.

Connect leads to its proper colors. Using an alligator clamp, find the red lead of your battery and attach the clamp. Following the same pattern, do the process toward the black lead of your energy source.

Over the twisted leads, ensure a solid twist by clamping the last alligator clamp on it. Then using another connector, place the red wire on the positive terminal of the battery and place the black one in the negative terminal. Hold similar charges together of positives and negatives of your voltmeter lead and clamps and turn your meters 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.

Creating your own portable device is just easy. However, you have to take safety measures for this. When dealing with a 9V battery, however, you may not see a lot of danger for it in terms of electrocution possibilities. But for other electronics, make sure that you have unplugged the wires before working on it.




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