When I place the voltmeter probes across the battery terminals to measure the potential difference of the battery, does the internal resistance of the voltmeter have to be low or high? Think of this act as the circuit below. (We don't want the influence of the voltmeter to change our circuit paths by including it to measure voltage so...) Voltmeter R component to be measured a. The inter resistance of the voltmeter must be low to allow large current through to read the voltage (connected in parallel effectively) O b. The internal resistance must be high so current is not significantly effected by the presence of the voltmeter (connected in parallel effectively) O c. The voltmeter is connected in series when measuring voltages d. The voltmeter cant measure potential difference

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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When I place the voltmeter probes across the battery terminals to measure the
potential difference of the battery, does the internal resistance of the voltmeter have
to be low or high? Think of this act as the circuit below. (We don't want the influence
of the voltmeter to change our circuit paths by including it to measure voltage so..)
Voltmeter
R
component to
be measured
The inter resistance of the voltmeter must be low to allow large current
a.
through to read the voltage (connected in parallel effectively)
O b. The internal resistance must be high so current is not significantly effected
by the presence of the voltmeter (connected in parallel effectively)
O c.
The voltmeter is connected in series when measuring voltages
d.
The voltmeter cant measure potential difference
Transcribed Image Text:When I place the voltmeter probes across the battery terminals to measure the potential difference of the battery, does the internal resistance of the voltmeter have to be low or high? Think of this act as the circuit below. (We don't want the influence of the voltmeter to change our circuit paths by including it to measure voltage so..) Voltmeter R component to be measured The inter resistance of the voltmeter must be low to allow large current a. through to read the voltage (connected in parallel effectively) O b. The internal resistance must be high so current is not significantly effected by the presence of the voltmeter (connected in parallel effectively) O c. The voltmeter is connected in series when measuring voltages d. The voltmeter cant measure potential difference
When I place the voltmeter probes in series (in the current line or path) to measure
current, does the internal resistance of the voltmeter have to be low or high? Think of
this act as the circuit below. (We don't want the influence of the voltmeter (used here
as an ammeter ) to change the current levels flowing in the circuit so...) {remember I
changed the probe input on the the voltmeter especially to measure current (not
resistance or voltage)}
NA
-A
OFF
OUA
COM
Transcribed Image Text:When I place the voltmeter probes in series (in the current line or path) to measure current, does the internal resistance of the voltmeter have to be low or high? Think of this act as the circuit below. (We don't want the influence of the voltmeter (used here as an ammeter ) to change the current levels flowing in the circuit so...) {remember I changed the probe input on the the voltmeter especially to measure current (not resistance or voltage)} NA -A OFF OUA COM
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