Problem A potentiometer is an instrument for measuring an unknown voltage in comparison to a standard voltage. In the potentiometer shown in Figure 1.0 a 16.0-m stretch of wire AB is connected to a 9.00-V battery. The resistance per unit length of the wire is 16.0 0/mm. The movable contact P is at point B. An ammeter (circle with A inside) is connected to point A. 16.0 m A B wwww Figure: 1.0 A V = 9.00 V 1. What is the total resistance of wire AB? Given: Solution: 2. What current does the ammeter read in milliamperes? Given: Solution:
Problem A potentiometer is an instrument for measuring an unknown voltage in comparison to a standard voltage. In the potentiometer shown in Figure 1.0 a 16.0-m stretch of wire AB is connected to a 9.00-V battery. The resistance per unit length of the wire is 16.0 0/mm. The movable contact P is at point B. An ammeter (circle with A inside) is connected to point A. 16.0 m A B wwww Figure: 1.0 A V = 9.00 V 1. What is the total resistance of wire AB? Given: Solution: 2. What current does the ammeter read in milliamperes? Given: Solution:
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:Problem
A potentiometer is an instrument for measuring an unknown voltage in comparison to a standard voltage.
In the potentiometer shown in Figure 1.0 a 16.0-m stretch of wire AB is connected to a 9.00-V battery. The
resistance per unit length of the wire is 16.0 0/mm. The movable contact P is at point B. An ammeter (circle
with A inside) is connected to point A.
16.0 m
A
B
www
Figure: 1.0
V = 9.00 V
1. What is the total resistance of wire AB?
Given:
Solution:
2. What current does the ammeter read in milliamperes?
Given:
Solution:
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