MJ15 P42 Q5 Two Charge Resultant Potential Graph | May/June 2015 | Cambridge A Level 9702 Physics
9702/42/M/J/15: (a) Define electric potential at a point.
#9702s15p42 #A2multiChargeP4 #A2ResultantPotentialP4 #Lv3
(b) Two positively charged metal spheres A and B are situated in a vacuum, as shown in Fig. 5.1. A point P lies on the line joining the centres of the two spheres and is a distance x from the surface of sphere A. The variation with x of the electric potential V due to the two charged spheres is shown in Fig. 5.2.
(i) State how the magnitude of the electric field strength at any point P may be determined from the graph of Fig. 5.2.
(ii) Without any calculation, describe the force acting on a positively charged particle placed at point P for values of x from x = 0 to x = 10 cm.
(c) The positively charged particle in (b)(ii) has charge q and mass m given by the expression. Initially, the particle is at rest on the surface of sphere A where x = 0. It then moves freely along the line joining the centres of the spheres until it reaches the surface of sphere B.
(i) On Fig. 5.2, mark with the letter M the point where the charged particle has its maximum speed.
(ii) 1. Use Fig. 5.2 to determine the potential difference between the spheres.
2. Use your answer in (ii) part 1 to calculate the speed of the particle as it reaches the surface of sphere B. Explain your working.
#A2ElectricFields Playlist
• Ch18 Electric Fields | CAIE 9702 A2 P...
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_s15_qp42
Watch video MJ15 P42 Q5 Two Charge Resultant Potential Graph | May/June 2015 | Cambridge A Level 9702 Physics online without registration, duration hours minute second in high quality. This video was added by user ETphysics 09 May 2022, don't forget to share it with your friends and acquaintances, it has been viewed on our site 2,689 once and liked it 38 people.