An electrified wire is subjected to a force in a magnetic field, and the direction of the force follows______ Direction and direction______ It all has to do with the direction

An electrified wire is subjected to a force in a magnetic field, and the direction of the force follows______ Direction and direction______ It all has to do with the direction

The force direction of the conducting wire in the magnetic field is related to the current direction and the magnetic induction line direction (magnetic field direction)

How to judge the direction of current by putting an electrified straight wire into a uniform magnetic field

If you are talking about an electrified straight wire, if you put it into a uniform magnetic field, the conductor will move under the action of the electromagnetic force F. the direction of the current will not change. What needs to be judged is the direction of the movement of the conductor under the action of the electromagnetic force. The relationship between the direction of the current, the direction of the magnetic field, and the direction of the electromagnetic force can be judged by the left hand rule: stretch out the left hand, and the thumb is perpendicular to the other four fingers, The magnetic line of force passes through the palm of the hand (that is, the palm faces the N pole), the direction of the four fingers is the direction of the current, and the direction of the thumb is the direction of the force on the conductor (that is, the direction of the electromagnetic force F)
If you are talking about a straight wire without electricity, put it into a uniform magnetic field to cut the magnetic line of force. Then the induced electromotive force (according to the law of electromagnetic induction) will be generated in the conductor. Here, the relationship between the current direction, the movement direction of the conductor and the magnetic field direction can be determined by the right hand rule: extend the right hand, and the thumb is perpendicular to the other four fingers, The magnetic line of force passes through the palm of the hand (that is, the palm faces the N pole), the direction of thumb is the direction of motion of the conductor, then the direction of four fingers is the direction of induced electromotive force (that is, the direction of induced current)
The left-hand rule applies to motors and the right-hand rule to generators

How to judge the direction of the magnetic field formed by the electrified wire,

High school physics has an introduction
The ampere rule, also known as the right-hand spiral rule, is a rule indicating the relationship between the current and the direction of the magnetic induction line of the magnetic field excited by the current, Then the direction of the four fingers is the surrounding direction of the magnetic induction line; the ampere rule in the electrified solenoid (ampere rule 2): hold the electrified solenoid with the right hand to make the four fingers bend in the same direction as the current, then the end pointed by the thumb is the N pole of the electrified solenoid

The direction of the magnetic force on the conducting wire must be perpendicular to the plane determined by the direction of the magnetic field and the direction of the current

That's right
If the current carrying conductor is placed in the magnetic field, the conductor will be subjected to the force of the magnetic field. The direction of the force can be judged by the left-hand law. The left-hand law is to extend the thumb, index finger and middle finger of the left hand to make them perpendicular to each other. The index finger points to the direction of the magnetic field, the middle finger points to the direction of the current, and the thumb points to the direction of the force