Es seguro https session-master ngphy cs.com my t item e ?assignmentProblemID=907

Question

Es seguro https session-master ngphy cs.com my t item e ?assignmentProblemID=9079 705&offsetsnet; EXAM 1 Item 8 8 of 16 Constants I Periodic Table v Part A Unlike the idealized voltmeter, a real voltmeter has a resistance that is not infinitely large A voltmeter with resistance Rv is connected across the terminals of a battery of emf E and internal resistance r Find the potential difference Vmeter measured by the voltmeter A2p meter Submit Request Answer Part B This question will be shown after you complete previous question(s)

Explanation / Answer

let "i" be the current flowing in the circuit

Rtotal = total resistance of the circuit = Rv + r

E = emf of the battery

using ohm's law

E = i Rtotal

i = E/Rtotal = E/(Rv + r)

Potential difference is given as

Vmeter = i Rv

Vmeter = ERv /(Rv + r)

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