P11 The period of small oscillations of a small magnetic dipole in the magnetic field of Earth is To. If we place and fix another identical magnetic dipole at position A, the period of oscillations of the first dipole becomes TA. Find the period Tg of the oscilla- tions of the first dipole if the second dipole is placed and fixed at position B (instead of position A). The north pole of the magnets is the darker one.

Find the direction of the magnetic field at each of the indicated points. What is the direction of the magnetic field Bc at Point C? O Bc is out of the page. O Bc is into the page. O Bc is neither out of nor into the page and Bc + 0. O Bc = 0. Figure 1 of 2 Part D What is the direction of the magnetic field Bp at Point D? A O Bp is out of the page. O Bp is into the page. O Bp is neither out of nor into the page and BD # 0. O BD = 0

A 68.0-cm-diameter cyclotron uses a 450 V oscillating potential difference between the dees. Part A What is the maximum kinetic energy of a proton if the magnetic field strength is 0.740 T? Express your answer with the appropriate units. Value Submit Part B μA Submit Units Request Answer IV—| ΑΣΦ 3 How many revolutions does the proton make before leaving the cyclotron? ? Request Answer ?

In vacuum, magnetic force on a moving charged particle provides an acceleration to the particle. Thus, it also changes the kinetic energy of the particle. O True O False The direction of magnetic force is perpendicular both to the velocity of the particle and to the magnetic field. True O False The net magnetic force acting on any closed current-carrying loop in a uniform magnetic field is zero. True O False All electric field lines are continuous and always form closed loops. OTrue False

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Check my work 2 1 points The magnetic field in a hospital's cyclotron is 0.410 T. Find the magnitude of the magnetic force on a proton with speed 1.20 × 107 m/s moving in a plane perpendicular to the field. N Skipped