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Figure 2434 shows the phasor diagram for an RLC circuit in

Physics | 4th Edition | ISBN: 9780321611116 | Authors: James S. Walker ISBN: 9780321611116 152

Solution for problem 90 Chapter 24

Physics | 4th Edition

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Physics | 4th Edition | ISBN: 9780321611116 | Authors: James S. Walker

Physics | 4th Edition

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Problem 90

Figure 2434 shows the phasor diagram for an RLC circuit in which the impedance is . (a)What is the resistance, R, in this circuit? (b) Is this circuit driven at a frequency that is greater than, less than, or equal to the resonance frequency of the circuit? Explain.

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NervousSystem:TheFundamentalsPart2 4/10/1610:29PM RestingMembranePotential • Restingmembranepotentialliesataround-70mV • Differenceinelectricalchargeacrossthemembrane • Alwaysnegative • Insideofthecellismorenegativethatoutside RoleofIonChannelsInMembranePotential • Leakychannelsarealwaysopen • Gatedchannelsarenotalwaysopen • VoltageGatedchannelsonlyopeninresponsetoavoltagechange TwoFactorsContributetoRMP • Concentrationgradient:ionswillmovedowntheirconcentrationgradient • Electricalgradient:ionswillmovedowntheirelectricalgradient • Balancebetweenthetwoistheelectrochemicalgradient • IonConcentrationinRMP • Moresodiumontheoutsideandmorepotassiumontheinsideofthecell • RoleofPlasmaPermeabilityinRMP • Notpermeabletoproteinanions • VerylittleNa+ispermeable • MostlypermeabletoK+ions • K+andNa+contributemosttoRMP • WhathappenstodisruptRMP • Gradedpotentialswhichoccurindendritesandareincomingsignals(varyinstrength) • Actionpotentialsoccurinaxonsandareoutgoingsignals(allornothing) • ChangesinPolarity • Depolarization:membranepotentialismorepositive • Hyperpolarization:membranepotentialismorenegativethanresting • Repolarization:membranepotentialismorenegativeafterdepolarization • GradedPotentials • Shortandlocalized • Magnitudeanddistancearedeterminedbythestrengthofthestimulus • TwoInstancesofGradedPotentials • ReceptorPotentialorGeneratorPotential:whenasensoryneuronfires • PostsynapticPotential:whenanaxonmeetswiththedendritesofanotherneuron • Axosomatic,axoaxonal,axodendriticsynapses • ActionPotentials • 1.RestingState:nomembranepotentialchange • 2.Na+flowsintothecellbecausethevoltagegatedchannelshaveopened • 3.Repolarization:sodiumchannelsclose,andpotassiumchannelsopen,allowing potassiumtoflowoutofthecell • 4.K+ionscontinuetoleavethecellcausinghyperpolarization • 5.Sodiumpotassiumpumprestoresrestingmembranepotential • Threshold • Actionpotentialsdonotoccurifvoltagedoesnotreach-55mV • Notalldepolarizationscauseactionpotentials • PropagationofActionPotentials • Localvoltagechangecausessodiumchannelstoopen • Thoseopenchannelscausethesodiumchannelsfurtherdowntheneurontoopen • Thishappensallthewaydowntheneuron • Strongerstimuliresultinmoreactionpotentials • RefractoryPeriods • Timewhenanotheractionpotentialcan’thappen • Absolute:actionpotentialwillnotoccur,regardlessofstimulusstrength • Relative:actionpotentialwillonlyoccurwithasuperstrongstimulus • HowFastDoActionPotentialsTravel • Factors:diameterofaxonandamountofmyelination • RoleofMyelinationinActionPotentialVelocity • Innon-myelinatedaxons,actionpotentialshavetoconstantlyregenerate,so conductionisslow • Inmyelinatedaxons,themyelinsheathhousesareasoftheaxonwithnoleakychannels, meaningthevoltageoftheactionpotentialdoesnotdecayasittravels.Thisleadstofast conduction • MultipleSclerosis • Whitebloodcellsattackmyelin • Causespoornervesignaling • Mostlyseeninwomen 4/10/16 10:29 PM 4/10/16 10:29 PM

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Chapter 24, Problem 90 is Solved
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Textbook: Physics
Edition: 4
Author: James S. Walker
ISBN: 9780321611116

This full solution covers the following key subjects: Circuit, frequency, Greater, equal, explain. This expansive textbook survival guide covers 32 chapters, and 3407 solutions. The full step-by-step solution to problem: 90 from chapter: 24 was answered by , our top Physics solution expert on 11/15/17, 04:23PM. Physics was written by and is associated to the ISBN: 9780321611116. Since the solution to 90 from 24 chapter was answered, more than 234 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics, edition: 4. The answer to “Figure 2434 shows the phasor diagram for an RLC circuit in which the impedance is . (a)What is the resistance, R, in this circuit? (b) Is this circuit driven at a frequency that is greater than, less than, or equal to the resonance frequency of the circuit? Explain.” is broken down into a number of easy to follow steps, and 48 words.

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Figure 2434 shows the phasor diagram for an RLC circuit in