Fammi 10 domande a risposta multipla sul campo magnetico
Quiz by Riccardo
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24 questions
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- Q1What is the SI unit for magnetic flux density?OhmVoltAmpereTesla30s
- Q2What is the phenomenon that occurs when a magnetic field changes in an electric circuit?RefractionConvectionElectromagnetic inductionDiffraction30s
- Q3Which law describes the relationship between a magnetic field, an electric field, and the velocity of a charged particle?Hooke's lawNewton's law of gravitationOhm's lawLorentz force law30s
- Q4What is the magnetic field inside a current-carrying solenoid?Non-uniform and perpendicular to the axisUniform and parallel to the axis of the solenoidZeroFluctuating and radial30s
- Q5What is the relationship between magnetic field strength and magnetic field lines in a region?The field lines bend in the opposite direction of the field strengthThe field lines spiral around at the same distance regardless of strengthThe field lines are farther apart where the field is strongerThe field lines are closer together where the field is stronger30s
- Q6What does the right-hand rule for magnetic fields determine?The temperature of the magnetic fieldThe strength of the magnetic fieldThe direction of the magnetic field around a current-carrying wireThe color of the magnetic field30s
- Q7What is the magnetic field like inside a bar magnet?It forms straight lines from the north pole to the south pole inside the magnetIt vanishes inside the magnetIt spirals randomly inside the magnetIt forms closed loops from the north pole to the south pole inside the magnet30s
- Q8What is the relationship between the strength of a magnetic field and the number of magnetic field lines passing through a given area?The stronger the field, the fewer field lines pass through the areaThe stronger the field, the more field lines pass through the areaThe number of field lines is always constant regardless of field strengthThe strength of the field does not affect the number of field lines30s
- Q9What is the symbol used to represent magnetic field strength in physics?PMBF30s
- Q10Cosa si intende per flusso magnetico attraverso una superficie chiusa?La somma delle linee di campo magnetico nella superficieLa densità di flusso magnetico attraverso la superficieIl prodotto vettoriale tra il campo magnetico e la superficieIl prodotto scalare tra il campo magnetico e la normale alla superficie30s
- Q11Cosa si intende per 'campo magnetico uniforme'?Un campo magnetico con orientamento casualeUn campo magnetico variabile nel tempoUn campo magnetico senza direzioneUn campo magnetico con intensità e direzione costanti nello spazio30s
- Q12Qual è la forza che agisce su una particella carica immersa in un campo magnetico?Forza ElettrostaticaForza CentripetaForza GravitazionaleForza di Lorentz30s
- Q13Qual è la direzione del campo magnetico intorno a un conduttore quando scorre una corrente?CircolareLineareRadialeOrizzontale30s
- Q14Quale è la legge che descrive il campo magnetico generato da una corrente elettrica?Legge di GaussLegge di AmpèreLegge di OhmLegge di Faraday30s
- Q15Cosa indica la legge di Lenz riguardante l'induzione elettromagnetica?La corrente indotta ha un verso opposto alla variazione di flussoLa corrente indotta ha lo stesso verso della variazione di flussoLa corrente indotta varia linearmente con il flusso magneticoLa corrente indotta non dipende dalla variazione di flusso30s