QCEVault

Magnetic fields — Question 73

Original QCE Vault practice · 3 marks

Q73 · Practice questionSimple familiar3 marks

QUESTION 73 (3 marks)

A long solenoid has 12001200 turns per metre and carries a current of 2.50 A2.50\,\text{A}. Determine its internal magnetic flux density.
Question linkSyllabus coverage

Related questions

  1. Q17 · Original practice · 1 mark
    A straight wire carries current out of the page, as shown. What is the direction of the magnetic field around the wire?
    Magnetic fields
  2. Q18 · Original practice · 1 mark
    A long solenoid has 750750 turns per metre and carries a current of 1.8 A1.8\,\text{A}. What magnetic flux density is produced inside it?
    Magnetic fields
  3. Q19 · Original practice · 1 mark
    An electron moves at 2.0×106 m s−12.0\times10^6\,\text{m s}^{-1} perpendicular to a 0.20 T0.20\,\text{T} magnetic field. What is the magnitude of the magnetic force?
    Magnetic fields
  4. Q20 · Original practice · 1 mark
    A 0.28 m0.28\,\text{m} wire carrying 4.0 A4.0\,\text{A} makes an angle of 60∘60^\circ with a 0.35 T0.35\,\text{T} magnetic field. What force acts on the wire?
    Magnetic fields