Ampere's rule: Difference between revisions
Jump to navigation
Jump to search
imported>Subpagination Bot m (Add {{subpages}} and remove any categories (details)) |
imported>Mark Widmer (Changed to show Ampere's full name.) |
||
| Line 1: | Line 1: | ||
{{subpages}} | {{subpages}} | ||
'''Ampere's rule''' is a rule for the direction of deviation of a magnetic needle caused by the presence of a straight, electric-current carrying, wire. The rule was first formulated by [[André-Marie | '''Ampere's rule''' is a rule for the direction of deviation of a magnetic needle caused by the presence of a straight, electric-current carrying, wire. The rule was first formulated by [[André-Marie Ampère]], see for the physics background [[Biot-Savart's law]]. | ||
The rule reads as follows: Let the open palm of your right hand face the magnetic needle. Direct your hand so that the current enters at your wrist and flows towards your fingers. Then the North Pole of the magnetic needle will deviate in the direction of the stretched thumb of your right hand. | The rule reads as follows: Let the open palm of your right hand face the magnetic needle. Direct your hand so that the current enters at your wrist and flows towards your fingers. Then the North Pole of the magnetic needle will deviate in the direction of the stretched thumb of your right hand. | ||
Revision as of 19:07, 20 September 2021
Ampere's rule is a rule for the direction of deviation of a magnetic needle caused by the presence of a straight, electric-current carrying, wire. The rule was first formulated by André-Marie Ampère, see for the physics background Biot-Savart's law.
The rule reads as follows: Let the open palm of your right hand face the magnetic needle. Direct your hand so that the current enters at your wrist and flows towards your fingers. Then the North Pole of the magnetic needle will deviate in the direction of the stretched thumb of your right hand.