SP22 P4 Q7 Solenoid Current Reversed | Specimen Paper 2022 | Cambridge A Level 9702 Physics
9702/4/SP/22 with small modification: (a) (i) Define magnetic flux. (ii) State Faraday’s law of electromagnetic induction.
#9702sp22p4 #A2mutualInductanceP4 #A2varyingBfieldP4 #Lv2
(b) A solenoid has a coil C of wire wound tightly about its centre, as shown in Fig. 7.1. The coil C has 96 turns. The uniform magnetic flux Φ, in Wb, in the solenoid is given by the expression Φ = 6.8 × 10–6 × I where I is the current, in A, in the solenoid. Calculate the average electromotive force (e.m.f.) induced in coil C when a current of 3.5 A is reversed in the solenoid in a time of 2.4 ms.
(c) The d.c. supply in Fig. 7.1 is now replaced with a sinusoidal alternating supply. Describe qualitatively the e.m.f. that is now induced in coil C.
SP22 Paper Discussion Playlist:
• 9702 Specimen Papers SP22 CAIE Physics
#A2magneticInduction Playlist:
• Ch20 Magnetic Induction (Part 2) | CA...
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
#CambridgeALevelPhysics
9702_sp22_p4
Смотрите видео SP22 P4 Q7 Solenoid Current Reversed | Specimen Paper 2022 | Cambridge A Level 9702 Physics онлайн без регистрации, длительностью часов минут секунд в хорошем качестве. Это видео добавил пользователь ETphysics 09 Май 2022, не забудьте поделиться им ссылкой с друзьями и знакомыми, на нашем сайте его посмотрели 1,141 раз и оно понравилось 23 людям.