Register to reply

Finding Resistance of a Voltmeter

by thiefjack
Tags: resistance, voltmeter
Share this thread:
thiefjack
#1
Mar14-12, 09:44 PM
P: 11
1. The problem statement, all variables and given/known data
I'm trying to find the internal resistance of a Voltmeter.

The current is 0.212 mA which is measured by I. Rx is 7000 Ohms and the emf of the battery is 1.50 V.

2. Relevant equations

V = IR so R = V/I

3. The attempt at a solution

How can I start it off to find the Voltmeter's resistance? I don't know exactly to accomplish this. Any help would be appreciated.
Attached Thumbnails
photo.JPG  
Phys.Org News Partner Science news on Phys.org
Suddenly, the sun is eerily quiet: Where did the sunspots go?
'Moral victories' might spare you from losing again
Mammoth and mastodon behavior was less roam, more stay at home
NascentOxygen
#2
Mar15-12, 05:57 AM
HW Helper
Thanks
P: 5,121
Hi thiefjack! Can you provide the full question? I think you have extracted just part of it for this post. This circuit diagram won't get you anywhere.

Or maybe this circuit is your attempt at an answer?

What information would you need in order to determine the voltmeter's resistance?


Register to reply

Related Discussions
Resistance of ammeter and voltmeter Introductory Physics Homework 14
Resistance of voltmeter Introductory Physics Homework 3
Changing the resistance of a voltmeter Introductory Physics Homework 5
Ammeter and voltmeter resistance Engineering, Comp Sci, & Technology Homework 6
Infinite resistance of a Voltmeter Introductory Physics Homework 5