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Potentiometer Calculator
Potentiometer refers to an instrument for measuring an unknown voltage by comparison to a standard voltage. A three-terminal resistor with an adjustable center connection, widely used for volume control in radio and television is termed as a potentiometer. A potentiometer is also called as a variable resistor or pot.
Table of Contents:
Formula
VL=R2RL/ ( ( R1RL+R2RL+R1R2)*Vs)
A potentiometer is a type of variable resistor that resists electric current and adjusts electrical devices. A potentiometer is similar to a rheostat, but it is more efficient. The advanced online Potentiometer Calculator is used to calculate the divider voltage for three-terminal resistors.
Example:
Calculate the Potentiometer for the given details.
R1 (amps) = 25
R2 (amps) = 15
rl (amps) = 10
vs(volts) = 5
Solution:
Apply Formula:
VL=R2RL/ ( ( R1RL+R2RL+R1R2)*Vs)
VL = 15*10/(( 25*10+15*10+25*15)*5)
VL = 150/ ((250+150+375)*5)
VL = (150/775)*5
VL = 0.19354 *5
VL = 0.96774
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