ON20 P42 Q10 Parallel Wires Magnetic Field | October/November 2020 | Cambridge A Level Physics скачать в хорошем качестве

ON20 P42 Q10 Parallel Wires Magnetic Field | October/November 2020 | Cambridge A Level Physics

9702/42/O/N/20: (a) A long straight vertical wire A carries a current in an upward direction. The wire passes through the centre of a horizontal card, as illustrated in Fig. 10.1. The card is viewed from above. The card is shown from above in Fig. 10.2. On Fig. 10.2, draw four lines to represent the magnetic field produced by the current-carrying wire. #9702w20p42 #A2parallelWiresP4 #A2fluxDensityP4 (b) Two wires A and B are now placed through a card. The two wires are parallel and carrying currents in the same direction, as illustrated in Fig. 10.3. (i) Explain why a magnetic force is exerted on each wire. (ii) State the directions of the forces. (c) The currents in the two wires are not equal. Explain whether the magnetic forces on the two wires are equal in magnitude. #A2magneticFields Playlist:    • Ch20 Magnetic Fields (Part 1) | CAIE 9702 ...   ON20 Paper Discussion Playlist:    • 9702 ON20 Papers CAIE Physics   Instagram Pocket Guide (  / etphysics  ) More Resources (https://9702-physics.blogspot.com/) Support us! (  / etphysics  ) Tuition/Tutoring inquiries: Email: [email protected] Whatsapp: https://wa.me/60126679171 9702_w20_qp42 #CambridgeALevelPhysics