QCEVault

Electromagnetism — Question 132

Original QCE Vault practice · 5 marks

Q132 · Practice questionComplex familiar5 marks

QUESTION 132 (5 marks)

A positive ion passes undeflected through crossed electric and magnetic fields. The electric field is 3.60×104 N C−13.60\times10^{4}\,\mathrm{N}\,\mathrm{C}^{-1} upward and the magnetic field is 0.120 T0.120\,\mathrm{T} out of the page.
Original diagram for Physics Paper 2 question 02
a)
Determine the ion speed and direction of travel.
[2 marks]
b)
If the electric field is switched off, describe and calculate the radius for a singly charged neon−20-20 ion (mass 3.32×10−26 kg3.32\times10^{-26}\,\mathrm{kg}).
[2 marks]
c)
State what changes if the ion charge is doubled but its mass and speed are unchanged.
[1 mark]
Question linkSyllabus coverage

Related questions

  1. Q109 · Original practice · 1 mark
    At the midpoint between two equal positive point charges, the electric field is
    Electromagnetism
  2. Q110 · Original practice · 1 mark
    A straight wire carries conventional current north in a uniform magnetic field directed east. The magnetic force on the wire is
    Electromagnetism
  3. Q111 · Original practice · 1 mark
    A conducting loop is pulled out of aa region where a magnetic field is directed into the page. While the flux into the page is decreasing, the induced field is
    Electromagnetism
  4. Q112 · Original practice · 1 mark
    An ideal transformer has 600600 turns on its primary and 150150 turns on its secondary. A 240 Vrms240\,\mathrm{V} rms supply is connected to the primary. The secondary voltage is
    Electromagnetism