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Sheet2-Plasma: Chapter2- single particle motion 1. Electron moves in uniform magnetic field, if magnetic field is doubled then the Larmor radius of electron will be ........... original radius. (a)half (b) double (c)same 2. electron moves in uniform magnetic field, if magnetic field is doubled then the Larmor cyclotron frequency of electron will be ........... original radius. (a)double (b)half (c)same 3. proton moves in uniform magnetic field, as the magnetic field increases, the Larmor radius of proton ... (a)decreases (d)increases (c)doesn't change 4. proton moves in uniform magnetic field, as the magnetic field increases, the Larmor cyclotron frequency of proton ... ... . . .....4 (a)decreases (d)increases (c)doesn't change 5. If proton moving at the same speed as electron in uniform magnetic field, The Larmor radius of proton is approximately .......... than the electron. (a)2000 times bigger (b)200 times smaller (c)equal (a)500 times bigger 6. Particles with faster velocities or larger mass orbit ...... radii. (a)Larger (b)smaller (c)same 7. If proton and electron move in uniform magnetic field, The Larmor cyclotron frequency of proton is approximately .......... than the electron. (b)2000 times smaller (a)200 times bigger (c)equal (a)500 times smaller 8. If proton moving at the same speed as deuterium in uniform magnetic field, The Larmor radius of proton is awww... the deuterium. (a)double (b)half (c)equal (d) quarter (e)4 times 9. If proton moving at the same speed as tritium in uniform magnetic field, The Larmor radius of proton is w........ the tritium. (a)3 times (b)half (c)equal (d) quarter (e)4 times 10. If proton moving at the same speed as He in uniform magnetic field, The Larmor radius of proton is ..... the He* (a) double (b)half (c)equal (d) quarter (e)4 times 11. If proton moving at the same speed as He* in uniform magnetic field, The Larmor radius of proton is ..... the He' (a) 4 times (b)half (c)equal (d) double (e) quarter 12. If proton moving at the same speed as deuterium in uniform magnetic field, The Larmor cyclotron frequency of proton is ..... the deuterium. (a )half (b)double (c)equal (d)4 times 13. If proton moving at the same radius as deuterium in uniform magnetic field, The speed of proton is ........ the deuterium. (a)double (b)half (c)equal (a)4 times