DO PHYSICS ONLINE IDEAS TO IMPLEMENTION QUESTIONS & PROBLEMS SOLUTION QUIDELINES How to answer a question: problem solving (t0_372.pdf) p1.23 Waves transfer energy without any material being transformed. At first cathode rays were though to be waves like X-rays which has been recently discovered. Cathode rays were deflected both by electric and magnetic fields indicating that cathode rays were a stream of negatively charged particles and J J Thompson measured the ratio qe/me providing compelling evidence that cathode rays were a beam of negatively charged electrons. p1.28 = 10-30 kg = +6×10-12 C = 7.0×1021 m.s-2. m q a p1.30 force on a moving charge in a magnetic field force on charge particle [N] magnitude only F strength of uniform magnetic field [T tesla] magnitude only B magnetic flux density charge of particle [C coulomb] magnitude only q velocity of charged particle [m.s-1] magnitude only v angle between magnetic field lines and current direction magnitude only = 0 = 0 current direction & magnetic field F
DO PHYSICS ONLINE IDEAS TO IMPLEMENTION QUESTIONS & PROBLEMS SOLUTION QUIDELINES How to answer a question: problem solving (t0_372.pdf) p1.23 Waves transfer energy without any material being transformed. At first cathode rays were though to be waves like X-rays which has been recently discovered. Cathode rays were deflected both by electric and magnetic fields indicating that cathode rays were a stream of negatively charged particles and J J Thompson measured the qe/me ratio providing compelling evidence that cathode rays were a beam of negatively charged electrons. p1.28 m = 10-30 kg q = +6×10-12 C a = 7.0×1021 m.s-2. p1.30 force on a moving charge in a magnetic field F force on charge particle [N] magnitude only B strength of uniform magnetic field [T tesla] magnitude only magnetic flux density q charge of particle [C coulomb] magnitude only v velocity of charged particle [m.s-1] magnitude only angle between magnetic field lines and current direction magnitude only = 0 F = 0 current direction & magnetic field
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