Search results for "Magnetic Fields"

Search Past Papers

Found 2 results

Physics

Edexcel2024

Turn over PMT (c) Describe the role of the magnetic field in a particle detector. (3) .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. (d) Explain how the diagram gives evidence that a particle or particles, other than the positron, were produced in this decay. (4) .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. (Total for Question 14 = 11 marks) *P74468A01124* 

Question

Physics

CAIE2023

A charged particle passes through a region of uniform magnetic field of flux density 0.74T, as shown in Fig. 6.1. region of uniform magnetic field path of charged particle Fig. 6.1 The radius r of the path of the particle in the magnetic field is 23cm. (a) The particle is positively charged. State the direction of the magnetic field. [1] q (b) (i) Show that the specific charge of the particle (the ratio of its charge to its mass) m is given by the expression q v = , m rB where v is the speed of the particle and B is the flux density of the field. [2] (ii) The speed v of the particle is 8.2 × 106ms-1. Calculate the specific charge of the particle. specific charge = Ckg-1 [2] © UCLES 2005 9702/04/SPECIMEN PAPER PPPMMMTTT

Question