The form of Amp re s theorem, the formula of Ampere s law

Ampere's Law. The formula is f=bil. Ampere's law refers to Ampere's law.

It is a magnetic inductance line that represents the current and the magnetic field excited by the current.

The rules of the relationship between directions. Ampere's rule in energized straight wires: Hold the energized straight wire with your right hand and let your thumb point in the direction of the current in the straight wire, then the four-finger pointing is the direction of the magnetic field around the energized wire.

The amperometric rule for straight-line currents also applies to a small section of straight-line currents. The annular current can be regarded as composed of multiple small linear currents, and the direction of the magnetic inductance intensity on the central axis of the annular current is determined by the ampere rule of the linear current for each small linear current. Stacked to obtain the direction of the magnetic inductance line on the central axis of the annular current.

The ampere rule of the linear current is basic, the ampere rule of the annular current can be derived from the ampere rule of the linear current, and the ampere rule of the linear current is also suitable for the magnetic field generated by the linear motion of the charge, and the direction of the current is the same as the positive charge.

The direction of motion is the same, opposite to that of a negative charge.

1. Ampere's rule: Ampere's rule, also known as the right-hand spiral rule, is a rule that expresses the relationship between the direction of the magnetic inductance line of the current and the magnetic field excited by the current. Ampère's law, which is equivalent to Coulomb's law, is the fundamental experimental law of magnetic action, which determines the nature of the magnetic field and provides a way to calculate the interaction of electric currents.

2. The left-handed rule: The left-handed rule is the law that determines the relationship between the direction of the ampere force f (or motion), the direction of the magnetic induction intensity b and the current i of the energized conductor rod when the energized wire is in the magnetic field. The left-handed rule and the right-hand rule appear in the electromagnetism section of high school physics textbooks, and are one of the key points of the electromagnetism part.

3. The right-hand rule: In electromagnetism, the right-hand rule mainly judges the direction independent of the force. If it's about force, it's all about the left-handed rule. That is, the left-handed rule is used for forces, and the right-handed rule is used for others (generally used to determine the direction of the induced current).

Ampere's Law. is an electromagnetic law that states that electric currents and currents excite magnetic fieldsInductance linesThe relationship between directions is also called the spiral rule of left-handed fortune.

1. Ampere's rule for linear current.

Hold the wire with your right hand so that the direction of the straight thumb is the same as the direction of the current, then the direction of the curved four fingers is the direction of the magnetic line.

2. Ampere's rule of annular current: let the four fingers of the right hand bend the direction of the annular current be consistent, then the direction of the straight thumb is the n pole.

1. The formula of Ampere's law is f=bil, which refers to a straight wire with a current of i and a length of l, which is placed in the magnetic induction intensity.

is b in a uniform external magnetic field.

2. Ampere's law refers to Ampere's law.

Also known as the right-handed spiral rule.

It is a rule that expresses the relationship between the direction of the magnetic inductance line of the current and the current excitation magnetic search and transportation field. Amperine in the energized straight wire is to hold the energized straight wire with the right hand, so that the thumb points in the direction of the current, then the four fingers point in the direction of the magnetic inductance line. Amperine in the energized solenoid is to hold the energized solenoid with the right hand, so that the four fingers point in the direction of the current, then the end of the thumb is the n pole of the energized world pin beam solenoid.

1.Ampère's law formula is f=bil, that is, a straight wire with a current of i and a long fiber collapse of l is placed in a uniform external magnetic field with a magnetic induction intensity of b.

2.Ampere's law refers to Ampere's rule, also known as the right-hand spiral rule, which indicates the relationship between the current and the direction of the magnetic induction lines of the magnetic field excited by the current. Ampere's rule in energized linear wire is to hold the energized linear wire with your right hand, point your thumb in the direction of the current, and then point your four fingers in the direction around the magnetically induced wire after destroying the circle of your pants.

Ampere rule in energized solenoids is to keep energized solenoids with your right hand and point your four fingers in the square direction of the current pure wheel, so the end is pointed by your thumb to the n-pole of the energized solenoid.

According to Ampere's rule, if you hold the solenoid with your right hand so that your thumb indicates the n-pole of the energized solenoid, then the direction in which the four fingers are bent is the direction of the current.

The positive and negative poles of the power supply can be judged according to the direction of the current, if the current flows from the left end of the solenoid, that is, the left end of the power supply is the positive pole, and the right end is the negative pole.

Assuming that the energized wire is held with the right hand and the thumb is pointing in the direction of the current, then the four fingers bent represent the direction of the magnetic field around the wire. Suppose you hold an energized solenoid with your right hand and your four fingers bent in the direction of the current, then the thumb pointing is the direction of the magnetic field inside the energized solenoid.

Ampere's rule is mainly applied to:

1. The current carried by the solenoid will produce a magnetic field. Using the right-hand spiral rule, the direction of the magnetic field can be determined. Hold the solenoid with your right hand, point four fingers in the direction of the current, and then extend your thumb along the central axis of the solenoid, then the direction of the magnetic field is the direction of the thumb.

2. The right-hand spiral rule can also be used to identify the direction of the magnetic field around a wire. For this usage, the right-hand spiral rule is called the "ampere's right-hand spiral rule", or "ampere's rule". If you point the thumb of your right hand in the direction of the current of the wire, and then hold the other four fingers in the direction of the wire, the direction in which the four fingers are bent is the direction of the magnetic field.

Ampère's law is an electromagnetic law that shows the relationship between the direction of the magnetic inductance line of the electric current and the magnetic inductance of the electric current excitation magnetic field, also known as the left-handed spiral rule.

1) Ampere's rule of straight current: Hold the wire with your right hand, so that the direction of the straight thumb is consistent with the direction of the current, then the direction of the curved four fingers is the direction of the magnetic inductance line.

2) Ampere's rule of toroidal current: Let the four fingers of the right hand bend in the same direction as the toroidal current, then the direction pointed by the thumb of the straight Zenno is the n-pole.

Ampere's rule, also known as the right-hand spiral rule, is a rule that expresses the relationship between the direction of the magnetic inductance line of the electric current and the magnetic field excited by the current. Ampere's rule in energized straight wire (Ampere's rule 1): Hold the energized straight wire with your right hand, and let your thumb point in the positive and analog direction of the current, then the pointing of the four fingers is the surrounding direction of the magnetic inductance line; Ampere's rule in energized solenoids (Ampere's rule II):

Hold the energized solenoid with your right hand so that the four fingers are bent in line with the direction of the current, then the end of the thumb pointing is the n pole of the energized solenoid. Ampere force formula The force of current element i1d on another current element i2d that is 12 away from each other is df12 is: 0 i1i2d 2 d 1 12) df12 = 4 123 where the direction of d 1 and d 2 are the direction of the current car; 12 is a radial vector from i1d to i2d.

Ampere's law can be divided into two parts. One of them is that the magnetic field generated by the current element id (i.e., i.e., i.e., 12 above) is 0 id db = 4 3, which is Bisala's law. The second is that the force df (i.e., DF12) exerted on the magnetic field B by the current element IDL (i.e., i.e., I2D 2 above) is:

df = id b Ampere's Law Formula: The integral in the formula is the enclosure integral, and the current to the right of the equal sign is the algebraic sum of the currents flowing into the closed surface of the search. 0 is a constant, 0 = 4 *10 -7