Meridian Electronics - Circuit Question: 10k Resistor

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In summary, a 10k resistor is a component used in circuits to limit the amount of current, stabilize voltage, and prevent damage to other components. It can be used in both AC and DC circuits and its wattage rating can be calculated using the formula P = V²/R. Using a lower or higher resistance value can have negative effects on the circuit, and there are alternative resistors such as variable resistors or potentiometers, but a 10k resistor is commonly used and may be the best choice for certain circuits.
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david90
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go to http://www.meridianelectronics.ca/circ/batmon12.htm.

the 10k resistor is connected to the 56k resistor and ground but what is that arrow that goes from 100 uf to the 10k? This resistor has 3 connections?
 
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its a pot (potentiometer). With such device you turn the "volume" wheel for eg.
 
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The arrow that goes from the 100 uf capacitor to the 10k resistor is a connection point for the capacitor. The 10k resistor is used to limit the current flow through the capacitor and protect it from damage. It has three connections because it is connected to the 56k resistor and ground, as well as the capacitor. This circuit configuration is commonly known as a voltage divider, where the 10k resistor and the 56k resistor work together to divide the input voltage and provide a specific output voltage. You can learn more about this circuit and its applications by visiting the provided website.
 

1. What is the purpose of a 10k resistor in a circuit?

A 10k resistor is used to limit the amount of current flowing through a circuit. It also helps to stabilize the voltage and prevent damage to other components.

2. Can a 10k resistor be used in both AC and DC circuits?

Yes, a 10k resistor can be used in both AC and DC circuits as it does not have a polarity.

3. How do I calculate the wattage rating for a 10k resistor?

The wattage rating for a 10k resistor can be calculated using the formula P = V²/R, where P is the power in watts, V is the voltage, and R is the resistance in ohms.

4. What happens if I use a lower or higher resistance value instead of a 10k resistor?

If you use a lower resistance value, it will allow more current to flow through the circuit, possibly damaging other components. Using a higher resistance value will limit the current too much and may cause the circuit to not function correctly.

5. Are there any alternatives to using a 10k resistor in a circuit?

Yes, there are other types of resistors that can be used in circuits, such as variable resistors or potentiometers. However, a 10k resistor is a commonly used value and may be the best choice for certain circuits.

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