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level: Magnetic force

Questions and Answers List

level questions: Magnetic force

QuestionAnswer
The phenomenon where a current-carrying conductor placed near a magnet experiences a force, resulting in the movement of the conductor.Motor Effect
What is the motor effect?The motor effect is the phenomenon where a current-carrying conductor placed near a magnet experiences a force, leading to the movement of the conductor.
A wire or coil through which an electric current flows.Current-Carrying Conductor
What is a current-carrying conductor?It is a wire or coil with an electric current passing through it.
The force exerted by a magnet on a current-carrying conductor, according to the motor effect.Magnetic Force
What force does a magnet exert on a current-carrying conductor?The magnet exerts a magnetic force on the conductor.
The net force resulting from the interaction of magnetic forces between the magnet and the current-carrying conductor.Resultant Force
What is the resultant force in the context of the motor effect?The resultant force is the net force resulting from the interaction between magnetic forces exerted by the magnet and the conductor.
The position of the conductor that results in the maximum resultant force when it is perpendicular to the magnetic field.Right-Angles to Magnetic Field
In what position does the conductor experience the maximum resultant force in the motor effect?The maximum resultant force occurs when the conductor is at right-angles to the magnetic field.
The magnetic field generated around the conductor due to the flow of current, contributing to the motor effect.Induced Magnetic Field
What is an induced magnetic field?It is the magnetic field produced around the conductor by the flow of current, contributing to the motor effect.
The presence of two magnetic fields—one from the permanent magnet and one induced by the current—interacting to produce forces in the motor effect.Overlapping Magnetic Fields
What is the significance of overlapping magnetic fields in the motor effect?Overlapping magnetic fields lead to the interaction between the permanent magnet and the induced field, resulting in forces on the conductor.
A rule used to determine the direction of the force experienced by a current-carrying conductor in a magnetic field, as per the motor effect.Fleming's Left-Hand Rule
What is Fleming's left-hand rule used for?Fleming's left-hand rule is used to determine the direction of the force experienced by a current-carrying conductor in a magnetic field.
The direction of the magnetic field, typically from north to south.Magnetic Field Direction
What does the first finger of your left hand represent in Fleming's left-hand rule?The first finger represents the direction of the magnetic field.
The direction of the electric current flowing through the conductor.Current Direction
What does the second finger of your left hand represent in Fleming's left-hand rule?The second finger represents the direction of the electric current flowing through the conductor.
The direction of the force experienced by the current-carrying conductor in the magnetic field.Force Direction
What does the thumb of your left hand represent in Fleming's left-hand rule?The thumb represents the direction of the force experienced by the current-carrying conductor in the magnetic field.
The practical use of Fleming's left-hand rule to determine force direction based on the directions of magnetic field and current.Application of Fleming's Left-Hand Rule
How is Fleming's left-hand rule applied in determining force direction?By aligning the first finger with the magnetic field, the second finger with the current direction, and observing the direction indicated by the thumb, the force direction can be determined.
The phenomenon where a current-carrying conductor experiences a force in a magnetic field.Motor Effect
What is the significance of Fleming's left-hand rule in the motor effect?Fleming's left-hand rule helps determine the direction of the force experienced by a current-carrying conductor in a magnetic field, aiding in understanding the motor effect.
The force experienced by a current-carrying conductor placed at right-angles to a magnetic field.Force on a Conductor
What are the three factors that determine the size of the force on a conductor in a magnetic field?The three factors are magnetic flux density (B), current (I), and the length of the conductor (L).
The measure of the strength of a magnetic field within a given region.Magnetic Flux Density (B)
What is the symbol for magnetic flux density, and in what unit is it measured?The symbol for magnetic flux density is B, and it is measured in tesla (T) or newtons per ampere metre (N/A m).
The flow of electric charge, measured in amperes (A).Current (I)
What is the symbol for current, and in what unit is it measured?The symbol for current is I, and it is measured in amperes (A).
The physical length of the conductor along which the current flows.Length of Conductor (L)
What is the symbol for the length of the conductor, and in what unit is it measured?The symbol for the length of the conductor is L, and it is measured in metres (m).
The mathematical equation used to calculate the force on a conductor in a magnetic field.Force Equation for a Conductor
How can the force on a conductor be calculated using the equation?The force (in newtons, N) is calculated using the equation, where force = BIL (magnetic flux density × current × length of conductor).
The concept that increasing any of the factors (magnetic flux density, current, or length of conductor) will result in an increased force on the conductor.Increasing Force on a Conductor
How does each factor (B, I, L) contribute to increasing the force on the conductor?Increasing magnetic flux density (B), current (I), or the length of the conductor (L) individually will increase the force on the conductor.