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# Answer to Question #259314 in Electrical Engineering for musa

Question #259314

Assume that you are supplied with a translational potentiometer sensor with the following properties;

* 100 V DC Power Supply,

* 1 resistive wire: 40 mm long with 1mm2 cross-section area. ( resistivity=0,00025 Ohm m)

It is also given to you that;

-In the initial state (where no force is applied to the system) of the potentiometer, movable arm of the output voltage positioner covers 90% (length) of the resistive wire.

- When 10N of force is applied to the system you observe 6mm displacement (in (-) y direction) of the movable arm of the output voltage positioner

Calculate what is the output voltage change caused by the 10N of force?

1
2021-11-05T03:39:49-0400

Determine the maximum resistance:

"R=\\rho L\/A=10\\Omega."

Determine the current:

"I=V\/R=10\\text A."

The voltage across the arm without load:

"V_1=IR_1=(1-90\/100)IR=10\\text V."

The voltage across the arm with load:

"V_2=IR_2=IR\u00b7\\frac{0.1\u00b740+6}{40}=25\\text{V}."

The output voltage change:

"\\Delta V=V_2-V_1=15\\text{ V}."

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