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Download Physics 30 Concept Check 6 Concept: Calculate the electric
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Transcript
Physics30ConceptCheck6 Concept: Calculatetheelectricpotentialdifferencebetweentwopointsinauniform electricfield 1. Determinetheamountofpotentialdifferencebetweentwoparallelplatesthatare separatedby6.0cmiftheelectricfieldbetweentheplatesisdeterminedtobe 1.0x104N/C. 2. Ifaparticleismoved3.0cmperpendiculartotwoplatesproducingauniformelectric fieldof10000N/C,whatisthepotentialdifferencebetweentheit’sstartingposition andfinalposition? Concept: explain,quantitatively,electricalinteractionsusingthelawofconservationof energy 3. Oneelectronisshotdirectlyatastationaryelectron.Whatenergytransformations wouldoccur? 4. Determinetheelectricalpotentialenergyofanelectron10cmawayfroma10μC charge. 5. Determinethefinalvelocityofanelectronthatstartsfromrestasittravelsfrom20 cmto10cmawayfroma10μCcharge. 6. Analphaparticleacceleratesthroughapotentialdifferenceof3000V.Whatisit’s velocity? 7. AprotonismovedfrompointAtopointBinthediagramshownbelow.Determine thespeedtheprotonwouldreachatpointAifitwasreleasedatpointB. A 1500V 7.0cm 3.0cm B 8. Whatpotentialdifferencewouldberequiredtostopasodiumiontravellingat 2.25x105m/s?(mNa=3.82x10-26kg). Concept: 9. defineelectriccurrentastheamountofchargepassingareferencepointperunit oftime Whatistheunitofcurrent? 10. 11. If1.53x10-10Cofchargeflowthroughacircularcrosssectionofawirein 7.81x10-9s,whatisthecurrent? Howmanyelectronsflowpastagivenpointin1.00msifthecurrentis3.62A?
