Q1. What is the magnetic field inside a long solenoid? (2023)
Solution:
The magnetic field inside a long solenoid is uniform and parallel to the axis of the solenoid.
⏱ Time: 0s
Q2. If the magnetic field strength is doubled, what happens to the force on a current-carrying conductor in that field? (2022)
Solution:
The force on a current-carrying conductor is directly proportional to the magnetic field strength, so if the field strength is doubled, the force also doubles.
⏱ Time: 0s
Q3. What is the magnetic field at the center of a circular loop carrying current? (2022)
Solution:
The magnetic field at the center of a circular loop carrying current is directly proportional to the current and inversely proportional to the radius.
⏱ Time: 0s
Q4. What happens to the magnetic field when the current in a wire is reversed? (2023)
Solution:
When the current in a wire is reversed, the direction of the magnetic field also reverses.
⏱ Time: 0s
Q5. What is the direction of the magnetic field inside a bar magnet? (2023)
Solution:
The direction of the magnetic field inside a bar magnet is from the north pole to the south pole.
⏱ Time: 0s
Q6. What happens to the magnetic field when the current in a solenoid is reversed? (2023)
Solution:
When the current in a solenoid is reversed, the direction of the magnetic field also reverses.
⏱ Time: 0s
Q7. A charged particle moves in a magnetic field. What is the path of the particle? (2019)
Solution:
A charged particle moving in a magnetic field experiences a force that is perpendicular to its velocity, resulting in circular motion.
⏱ Time: 0s
Q8. If the magnetic field strength is doubled, what happens to the force experienced by a current-carrying conductor in that field? (2022)
Solution:
The force experienced by a current-carrying conductor in a magnetic field is directly proportional to the magnetic field strength. Therefore, if the magnetic field strength is doubled, the force also doubles.
⏱ Time: 0s
Q9. What happens to the magnetic field strength inside a solenoid if the number of turns per unit length is increased? (2023)
Solution:
The magnetic field strength inside a solenoid is directly proportional to the number of turns per unit length. Therefore, if the number of turns per unit length is increased, the magnetic field strength also increases.
⏱ Time: 0s
Q10. 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)
Solution:
The strength of the magnetic field in a solenoid is primarily determined by the number of turns per unit length and the current flowing through it.
