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1 markElectric Fields

CAPE Physics Unit 2 · May/June 2023 · Paper 2 · Question 1(c)(iii)

Table 2 shows the negative vertical displacement of electrons, sy, at various times, t, during their flight between plates V1 and V2.

The electrons traverse the field in 3.75 nanoseconds. Use the graph in (c) (ii) to determine how far from the horizontal axis of the plates the beam will emerge, as it exits the space between the plates.

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Other parts of this question

  1. 1(a)Using conventional symbols for physical quantities, complete Column 2 and Column 3 of Table 1.[10 marks]
  2. 1(b)(i)Determine the magnitude of the electric field between the plates.[3 marks]
  3. 1(b)(ii)Hence, calculate the vertical acceleration of the electrons as they pass between the plates.[4 marks]
  4. 1(c)(i)Complete Row 2 and Row 3 of Table 2.[4 marks]
  5. 1(c)(ii)On the grid provided in Figure 2 on page 9, plot a graph of negative vertical displacement versus time for the electron motion between the plates. Draw the…[4 marks]
  6. 1(d)Calculate the vertical velocity of the electron beam and hence its direction of travel on emerging from between the plates.[4 marks]

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