Calculate voltage and position of the slider

In summary, the conversation discusses a question about the correctness of work and the use of an unloaded potential divider in dividing voltage. The same current flows through both series resistors in this scenario. Additionally, there is a mention of an alternative method for finding the answer in part b.
  • #1
Edy56
38
5
Homework Statement
A total resistance potentiometer is used in the circuit in Figure 1
R POT = 10 kΩ which changes linearly from position 0 to position 1. If R= 5 kΩ, VCC= 5 V, determine:
(a) voltage value V OUT when the slider of the potentiometer is in position 0.5;
(b) position the potentiometer slider so that V OUT= 3 V.
Relevant Equations
None
Is my work correct?
I got confused whether the current Splits or not, but i decided against it.
IMG_20230604_224627.jpg
 
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  • #2
Edy56 said:
Is my work correct?
Yes.

Edy56 said:
I got confused whether the current Splits or not, but i decided against it.
An unloaded potential divider, divides the voltage.
The same current flows through both series resistors.

For part b, I solved it differently, to get the same answer.
Computed current; i = (5V - 3V ) / 5k ;
Then R = 3V / i ;
 
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Likes Edy56
  • #3
Baluncore said:
Yes.An unloaded potential divider, divides the voltage.
The same current flows through both series resistors.

For part b, I solved it differently, to get the same answer.
Computed current; i = (5V - 3V ) / 5k ;
Then R = 3V / i ;
Thank you
 

1. How do I calculate the voltage of the slider?

To calculate the voltage of the slider, you will need to know the resistance of the slider and the current flowing through it. Then, you can use Ohm's Law (V = IR) to calculate the voltage. Make sure to use the correct units for resistance (ohms) and current (amps) to get the voltage in volts.

2. What is the position of the slider?

The position of the slider can be determined by measuring the distance from the starting point to the current location of the slider. This distance can be measured in any unit of length, such as meters or inches.

3. How does the position of the slider affect the voltage?

The position of the slider can affect the voltage by changing the resistance of the circuit. As the slider moves, the amount of resistance in the circuit changes, which can impact the voltage according to Ohm's Law.

4. Can I calculate the voltage and position of the slider simultaneously?

Yes, it is possible to calculate the voltage and position of the slider simultaneously. You will need to measure the resistance of the slider at different positions and then use those values to calculate the voltage at each position.

5. How accurate are the calculations for voltage and position of the slider?

The accuracy of the calculations for voltage and position of the slider will depend on the accuracy of the measurements and the assumptions made in the calculations. It is important to use precise and reliable equipment and to double-check all calculations to ensure accuracy.

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