A-LevelPhysicsMagnetic fieldsFeb/Mar 2017Paper 4 Q89 Marks
(b) A particle of charge +q and mass m is travelling in a vacuum with speed v. The particle enters, at a right angle, a uniform magnetic field of flux density B, as shown in Fig. 8.1. particle charge +q mass m speed v d uniform magnetic field flux density B Fig. 8.1 The particle leaves the field after following a semi-circular path of diameter d.
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