A potentiometer is essentially a resistor with threecontacts, one of which is mobile. It acts as a variableresistor, since changing the position of the mobilecontact, called the "wiper" (denoted by an arrow),changes the amount of the resistor through which currentmust pass. The circuit shown consists of one 71.5 V2680 2,battery, one fixed resistor with resistance Rand one potentiometer. In addition, one of the wires isgrounded (at zero potential). The resistive material insidethe potentiometer has a resistance of 475 Q/mm.To what distance x should the wiper be moved so that12.8 mA of current passes through point B?X=mmWith the wiper in this position, what is the potential atpoint B?ww: wwww

Answered: Image /qna-images/answer/b9e8bc03-2549-4820-b405-a9648d445cb4.jpg

A potentiometer is essentially a resistor with three contacts, one of which is mobile. It acts as a variable resistor, since changing the position of the mobile contact, called the "wiper" (denoted by an arrow), changes the amount of the resistor through which current R, must pass. The circuit shown consists of one 71.5 V battery, one fixed resistor with resistance R = 2680 2. and one potentiometer. In addition, one of the wires is grounded (at zero potential). The resistive material inside the potentiometer has a resistance of 475 Q/mm. To what distance x should the wiper be moved so that 12.8 mA of current passes through point B? x = mm wwwwww

A potentiometer is essentially a resistor with three contacts, one of which is mobile. It acts as a variable resistor, since changing the position of the mobile contact, called the "wiper" (denoted by an arrow), changes the amount of the resistor through which current R, must pass. The circuit shown consists of one 71.5 V battery, one fixed resistor with resistance R = 2680 2. and one potentiometer. In addition, one of the wires is grounded (at zero potential). The resistive material inside the potentiometer has a resistance of 475 Q/mm. To what distance x should the wiper be moved so that 12.8 mA of current passes through point B? x = mm wwwwww

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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