placeholder image to represent content

Magnetic Fields and Forces

Quiz by Dina T

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes
10 questions
Show answers
  • Q1
    A long solenoid that has 1,030 turns uniformly distributed over a length of 0.425 m produces a magnetic field of magnitude 1.0 × 10⁻⁴ T at its center. What current is required in the windings for that to occur?
    32.8 mA
    43.9 mA
    14.8 mA
    54.7 mA
  • Q2
    Certain experiments must be performed in the absence of any magnetic fields. Suppose such an experiment is located at the center of a large solenoid so that a current of 1.70 A produces a magnetic field that exactly cancels Earth’s 4.30 x 10⁻⁵ T field. Find the solenoid’s number of turns per meter
    24 turns/m
    18 turns/m
    20 turns/m
    15 turns/m
  • Q3
    A long straight wire carries a current of 2.10 A in the direction shown below. What is the direction of the magnetic field at point P below the wire?
    Question Image
    Out of the page
    Into the page
  • Q4
    The magnetic field at a distance of 2 cm from a current carrying wire is 4 μT. What is the magnetic field at a distance of 8 cm from the wire?
    16 μT
    4 μT
    0.5 μT
    1 μT
  • Q5
    Using the directions of the current and Magnetic field shown in the image, find the direction of the Force on the wire
    Question Image
    Into the page
    Out of the page
    To the right
    To the left
  • Q6
    A proton of charge 1.6 x 10⁻¹⁹ C moving at 5.20 x 10⁶ m/s through a magnetic field of magnitude 1.78 T experiences a magnetic force of 7.0 x 10⁻¹³ N. What is the angle between the proton’s velocity and the field?
  • Q7
    A horizontal power line of length 44 m carries a current of 2.9 kA as shown below. Earth’s magnetic field has a magnitude of 5.0 x 10⁻⁵ T and makes an angle of 65° with the power line. Find the magnitude of the magnetic force on the power line.
    Question Image
    6.88 N
    3.76 N
    5.78 N
    4.25 N
  • Q8
    Which of the following changes can be made to make an electromagnet stronger?
    Decrease the current
    Reduce the number of turns
    Put an iron core inside the solenoid
    Make the solenoid longer
  • Q9
    The path of a charged particle moving parallel to a uniform magnetic field will be a ___________
    straight line
  • Q10
    The current in a long wire creates a magnetic field in the region around the wire. How is the strength of the field at distance 𝑟 from the wire center related to the magnitude of the field?
    Field directly proportional to r
    Field directly proportional to r²
    field inversely proportional to r
    Field inversely proportional to r²

Teachers give this quiz to your class