one: English: Amp re 's circuital law
Two: definition: represent the field excitation current and the current of the magnetic induction line direction of the relationship between rule, also called right.
Three: Ampere's law formula: integral formula for the contour integral, the right side of the equal sign is the current algebra and current flows into the closed in the plane. 0 is a constant, Mu 0 = 4 PI *10^-7.
Four: Ampere rule. Electrify straight wire in a Ampere rule (Ampere rule 1): with the right hand holding the electrifying direct conductor, let the thumb points in the direction of current, so that the four finger pointing is magnetic induction lines around the direction; electrified solenoid in the Ampere rule (Ampere rule two): tube screw line through using the right hand to hold, so that four fingers bent and current direction is consistent, then the end of the thumb is referred to the N pole of the electrified solenoid. |
