Understanding Voltage Dividers: Polarity and Voltage Reduction

In summary, the output of a voltage divider has the same polarity as the input and the resistors only decrease the original voltage. Resistors are passive components because they do not produce energy. This means that they do not have any effect on the polarity of the circuit.
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Jewish_Vulcan
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What polarity does the output of a voltage divider have?, do the resistors only decrease the original voltage?
 
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  • #2
Are resistors active or passive components?
 
  • #3
Bystander said:
Are resistors active or passive components?
They are passive because they do not produce energy. Why?
 
  • #4
Is a passive component going to do anything to the polarity of the circuit?
 
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Jewish_Vulcan said:
What polarity does the output of a voltage divider have?, do the resistors only decrease the original voltage?
Have you looked at the theory / equation for a Voltage divider (potential divider)? What gave you the impression that the PD could change polarity if the reference zero is the same for input and output?
 
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1. What is the purpose of a voltage divider?

A voltage divider is a circuit that divides a given input voltage into two or more output voltages. It is used to provide a specific voltage level for different components in a circuit.

2. How does a voltage divider work?

A voltage divider consists of two or more resistors connected in series. The output voltage is determined by the ratio of the two resistors and the input voltage. The output voltage is calculated using the formula: Vout = Vin x (R2 / (R1 + R2)).

3. What is the polarity of a voltage divider?

The polarity of a voltage divider refers to the orientation of the positive and negative terminals of the output voltage. In a voltage divider, the positive terminal is connected to the resistor with the higher resistance value.

4. Can a voltage divider change the polarity of an input voltage?

No, a voltage divider cannot change the polarity of an input voltage. It can only divide the input voltage into smaller output voltages.

5. How does the choice of resistors affect the output voltage in a voltage divider?

The output voltage in a voltage divider is directly proportional to the ratio of the two resistors. So, a higher resistance value for R2 will result in a higher output voltage, while a lower resistance value for R2 will result in a lower output voltage.

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