Magnetism

Q. A charged particle moves in a magnetic field. What is the path of the particle if it enters the field perpendicularly? (2023)
  • A. Straight line
  • B. Circular path
  • C. Elliptical path
  • D. Parabolic path
Q. A charged particle moves in a magnetic field. What is the path of the particle? (2019)
  • A. Straight line
  • B. Circular
  • C. Elliptical
  • D. Parabolic
Q. A current-carrying conductor experiences a force in a magnetic field. What is the direction of this force given by Fleming's left-hand rule? (2020)
  • A. Parallel to the field
  • B. Opposite to the field
  • C. Perpendicular to the field
  • D. In the direction of current
Q. A current-carrying conductor experiences a force in a magnetic field. What is the direction of this force? (2020)
  • A. Parallel to the field
  • B. Opposite to the field
  • C. Perpendicular to both current and field
  • D. In the direction of current
Q. A solenoid produces a magnetic field similar to that of a bar magnet. What is the main factor that affects the strength of the magnetic field in a solenoid? (2021)
  • A. Length of the solenoid
  • B. Number of turns per unit length
  • C. Material of the solenoid
  • D. Current flowing through the solenoid
Q. A solenoid produces a magnetic field similar to that of a bar magnet. What is the primary factor that determines the strength of the magnetic field in a solenoid? (2021)
  • A. Length of the solenoid
  • B. Number of turns per unit length
  • C. Material of the solenoid
  • D. Current flowing through the solenoid
Q. If the magnetic field strength is doubled, what happens to the force experienced by a current-carrying conductor? (2022)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. If the magnetic field strength is doubled, what happens to the force on a current-carrying conductor in that field? (2022)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. If the magnetic field strength is doubled, what happens to the force on a current-carrying conductor? (2022)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In which direction does the magnetic field line emerge from a bar magnet? (2022)
  • A. From North to South
  • B. From South to North
  • C. In a circular path
  • D. Randomly
Q. The force on a charged particle moving in a magnetic field is maximum when the angle between the velocity and the magnetic field is: (2021)
  • A. 0 degrees
  • B. 90 degrees
  • C. 180 degrees
  • D. 45 degrees
Q. The force on a charged particle moving in a magnetic field is maximum when: (2021)
  • A. The particle moves parallel to the field
  • B. The particle moves perpendicular to the field
  • C. The particle is at rest
  • D. The particle moves in a circular path
Q. What happens to the magnetic field lines when a magnet is cut into two pieces? (2021)
  • A. They disappear
  • B. They become weaker
  • C. Each piece becomes a magnet with its own field
  • D. They merge into one
Q. What happens to the magnetic field when the current in a solenoid is reversed? (2023)
  • A. It remains the same
  • B. It disappears
  • C. It reverses direction
  • D. It doubles
Q. What happens to the magnetic field when the distance from a long straight conductor is doubled? (2023)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. What is the direction of the magnetic field around a straight conductor carrying current? (2023)
  • A. From north to south
  • B. Clockwise
  • C. Counterclockwise
  • D. Radially outward
Q. What is the effect of increasing the current in a coil on the magnetic field produced? (2022)
  • A. Increases the magnetic field
  • B. Decreases the magnetic field
  • C. No effect
  • D. Reverses the magnetic field
Q. What is the effect of increasing the current in a solenoid on its magnetic field strength? (2021)
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Reverses direction
Q. What is the magnetic field inside a long solenoid when it carries a current? (2023)
  • A. Zero
  • B. Uniform and directed along the axis
  • C. Varies with distance
  • D. Depends on the temperature
Q. What is the magnetic field inside a long solenoid when the current is flowing through it? (2023)
  • A. Zero
  • B. Uniform and parallel
  • C. Concentric circles
  • D. Radial
Q. What is the magnetic field inside a long solenoid? (2023)
  • A. Zero
  • B. Uniform and parallel
  • C. Concentric circles
  • D. Decreasing
Q. Which of the following materials is a ferromagnetic material? (2020)
  • A. Copper
  • B. Aluminum
  • C. Iron
  • D. Gold
Q. Which of the following materials is considered ferromagnetic? (2022)
  • A. Copper
  • B. Aluminum
  • C. Iron
  • D. Gold
Showing 1 to 23 of 23 (1 Pages)
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