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Lesson: Magnetic Force on a Straight Current-Carrying Conductor in a Magnetic Field

Worksheet: Magnetic Force on a Straight Current-Carrying Conductor in a Magnetic Field • 4 Questions

Q1:

A current carrying conductor is placed within regions containing magnetic fields, perpendicular to those fields. The current carrying conductor is subject to magnetic forces, as shown in the cases (a), (b), and (c). In each case, the current carrying conductor is aligned perpendicular to the magnetic field.

In what direction is the current carrying conductor aligned in case (a)?

  • Aout
  • Bup
  • Cright
  • Dleft
  • Ein

In what direction is the current carrying conductor aligned in case (b)?

  • Adown
  • Bright
  • Cout
  • Dleft
  • Ein

In what direction is the current carrying conductor aligned in case (c)?

  • Aright
  • Bdown
  • Cup
  • Dleft
  • Ein

Q2:

A current carrying conductor is placed within regions containing magnetic fields, as shown in the cases (a), (b), (c), (d), (e), and (f).

What is the direction of the magnetic force on the current in case (a)?

  • Aup
  • Bright
  • Cleft
  • Din
  • Eno force

What is the direction of the magnetic force on the current in case (b)?

  • Aup
  • Bdown
  • Cin
  • Dout
  • Eno force

What is the direction of the magnetic force on the current in case (c)?

  • Aleft
  • Bin
  • Cup
  • Ddown
  • Eno force

What is the direction of the magnetic force on the current in case (d)?

  • Aup
  • Bdown
  • Cno force
  • Din
  • Eout

What is the direction of the magnetic force on the current in case (e)?

  • Aout
  • Bleft
  • Cright
  • Dup
  • Eno force

What is the direction of the magnetic force on the current in case (f)?

  • Aright
  • Bout
  • Cdown
  • Dup
  • Eno force

Q3:

A 5.0-m section of a long, straight wire carries a current of 10 A while in a uniform magnetic field of magnitude T.

Calculate the magnitude of the force on the section if the angle between the field and the direction of the current is .

Calculate the magnitude of the force on the section if the angle between the field and the direction of the current is .

Calculate the magnitude of the force on the section if the angle between the field and the direction of the current is .

Calculate the magnitude of the force on the section if the angle between the field and the direction of the current is .

Q4:

A long rigid wire lies along the -axis and carries a current of 2.5 A in the positive -direction. Around the wire is the magnetic field , with in meters and in millitesla. Calculate the magnetic force on the segment of wire between and .

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