Exam (elaborations)
AQA A-level PHYSICS 7408/3BD Paper 3 Section B June 2024 QP
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AQA A-level PHYSICS 7408/3BD Paper 3 Section B June 2024 QP
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Please write clearly in block capitals.Centre number Candidate number
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I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Turning points in physics
Monday 17 June 2024 Morning Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator
• a Data and Formulae Booklet
50 minutes on this section.
• a protractor.
For Examiner’s Use
Instructions Question Mark
• Use black ink or black ball-point pen.
1
• Fill in the boxes at the top of this page.
• Answer all questions. 2
• You must answer the questions in the spaces provided. Do not write 3
outside the box around each page or on blank pages.
4
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). TOTAL
• Do all rough work in this book. Cross through any work you do not want
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN2474083BD01*
IB/M/Jun24/E9 7408/3BD 1
, 2
Do not
Do not write
write
outside the
outside the
Section B box
box
Answer all questions in this section.
0 1 . 1 Figure 1 shows apparatus used in an experiment to measure the specific charge of
the electron.
Figure 1
Electrons are accelerated by the potential difference VA.
The electrons then enter the region between two parallel metal plates, shown shaded
in Figure 1. The parallel metal plates are separated by a distance d with a potential
difference VP across them. In the same region there is a uniform magnetic field of flux
density B into the plane of the diagram.
Explain why the electron beam is undeflected in the shaded region shown in Figure 1.
[2 marks]
*02*
IB/M/Jun24/7408/3BD 2
, 3
Do not write
outside the
0 1 . 2 Determine, using the following data, a value for the specific charge of the electron. box
B = 1.59 mT
VP = 1.51 kV
d = 5.0 cm
VA = 1.00 kV
[4 marks]
specific charge = C kg−1 6
Turn over for the next question
Turn over ►
*03*
IB/M/Jun24/7408/3BD 3
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