Table of Contents
- 1 What did ampere discover about two parallel wires carrying current in the same direction?
- 2 What happens when two parallel conductors carrying currents in same direction?
- 3 How was Ampère’s law discovered?
- 4 What will happen if I current flows in same direction II current flows in opposite direction?
- 5 When currents are moving in same direction in two conductors then the force will be?
- 6 What is the force on a current carrying wire that is parallel to the magnetic field give reason for your answer?
- 7 Is the magnetic force between two parallel conductors attractive?
- 8 How many wires are parallel and 10 cm apart?
What did ampere discover about two parallel wires carrying current in the same direction?
Ampère found that parallel wires with currents flowing in the same direction attract each other. Currents in opposite directions repel each other. Ampère had discovered something amazing: he had produced magnetic attraction and repulsion in the complete absence of any magnets.
What happens when two parallel conductors carrying currents in same direction?
Thus, when two parallel wires carry current in the same direction, they exert equal and opposite attractive forces on each other. There will be no force, since the currents cancel. There will be an attractive force between the wires. There will be a repulsive force between the wires.
Why two parallel wires carrying current in same direction attract each other?
This is due to the magnetic interaction between the wires carrying current. The magnetic interaction is of attractive nature when current is in same direction. Since the electrons constituting current move very fast, the magnetic force of attraction dominates the electrostaticc repulsion.
What is the force between two parallel current carrying wires?
The official definition of the ampere is: One ampere of current through each of two parallel conductors of infinite length, separated by one meter in empty space free of other magnetic fields, causes a force of exactly 2 × 10−7 N/m on each conductor.
How was Ampère’s law discovered?
Ampere’s law was discovered well the effect behind ampere’s law was discovered around 1819 actually by a Physics lecturer who was in the middle of a lecture and he noticed that a magnetic field was generated that moved around a compass needle when he ran a big current through a wire, so the law basically says that …
What will happen if I current flows in same direction II current flows in opposite direction?
When the currents flow in the same direction the magnetic field will be opposite and the wires will attract. If the currents flow in opposite directions, the electrons will “see” a higher density of electrons in the other wire due to relativistic length contraction. And the wires will repel.
When current is moving in the same direction in two conductors?
The direction is obtained from the right hand rule. Note that two wires carrying current in the same direction attract each other, and they repel if the currents are opposite in direction.
What is the direction of force between two parallel wires carrying current in opposite direction?
Two parallel wires carrying current in opposite directions repel and try to move away from each other.
When currents are moving in same direction in two conductors then the force will be?
Explanation: When two conductors are having currents moving in the same direction then the forces of the two conductors will be moving towards each other or attractive.
What is the force on a current carrying wire that is parallel to the magnetic field give reason for your answer?
The force on a current-carrying wire parallel to the magnetic field is zero because the magnetic force on the wire is due to the force experienced by moving electrons in the conductor. Further, the magnetic force has rotatory effect on electron motion only.
What is the force length between two long parallel current carrying?
One ampère is defined as that current when it is passed through each of the two infinitely long parallel straight conductors kept at a distance of one meter apart in vacuum causes each conductor to experience a force of 2 × 10−7 newton per meter length of conductor.
What is the force between two parallel wires?
The operational definition of the ampere is based on the force between current-carrying wires. Note that for parallel wires separated by 1 meter with each carrying 1 ampere, the force per meter is F l = (4π×10−7 T⋅ m/A)(1 A)2 (2π)(1 m) = 2×10−7 N/m F l = ( 4 π × 10 − 7 T ⋅ m/A) ( 1 A) 2 ( 2 π) ( 1 m) = 2 × 10 − 7 N/m.
Is the magnetic force between two parallel conductors attractive?
(b) A view from above of the two wires shown in (a), with one magnetic field line shown for each wire. RHR-1 shows that the force between the parallel conductors is attractive when the currents are in the same direction. A similar analysis shows that the force is repulsive between currents in opposite directions.
How many wires are parallel and 10 cm apart?
Two long, straight wires are parallel and 10 cm apart. One carries a current of 2.0 A, the other a current of 5.0 A. (a) If the two currents flow in opposite directions, what is the magnitude and direction of the force per unit length of one wire on the other?
What is the official definition of the ampere?
The official definition of the ampere is: One ampere of current through each of two parallel conductors of infinite length, separated by one meter in empty space free of other magnetic fields, causes a force of exactly on each conductor.