In measuring a voltage, a voltmeter uses some current from the circuit. Consequently, the voltage measured is only an approximation to the voltage present when the voltmeter is not connected. Consider a circuit consisting of two 2060- resistors connected in series across a 50.0-V battery. (a) Find the voltage across one of the resistors. (b) A voltmeter has a full-scale voltage of 50.0 V and uses a galvanometer with a full-scale deflection of 5.45 mA. Determine the voltage that this voltmeter registers when it is connected across the resistor used in part (a). Voltmeter Ry (a) Number i (b) Number i R Units Units ww R F

In measuring a voltage, a voltmeter uses some current from the circuit. Consequently, the voltage measured is only an approximation to the voltage present when the voltmeter is not connected. Consider a circuit consisting of two 2060- resistors connected in series across a 50.0-V battery. (a) Find the voltage across one of the resistors. (b) A voltmeter has a full-scale voltage of 50.0 V and uses a galvanometer with a full-scale deflection of 5.45 mA. Determine the voltage that this voltmeter registers when it is connected across the resistor used in part (a). Voltmeter Ry (a) Number i (b) Number i R Units Units ww R F

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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Question

In measuring a voltage, a voltmeter uses some current from the circuit. Consequently, the voltage measured is only an
approximation to the voltage present when the voltmeter is not connected. Consider a circuit consisting of two 2060-
resistors connected in series across a 50.0-V battery. (a) Find the voltage across one of the resistors. (b) A voltmeter has
a full-scale voltage of 50.0 V and uses a galvanometer with a full-scale deflection of 5.45 mA. Determine the voltage that
this voltmeter registers when it is connected across the resistor used in part (a).
(a) Number i
(b) Number i
R
Units
Units
Voltmeter
Rv
www
+
V
ww
R
(G)

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Step 1: Determine the given variables

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Step 2: (a.) Calculate voltage across one of the resistor

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Step 3: (b.) Calculate equivalent resistance of the circuit

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Step 4: Calculate voltage registered by voltmeter

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