Just like reading a book. Left to right, up to down.
pogi current flow in the armature conductor
In a DC motor, the polarity of interpoles is determined by the direction of current flow in the armature winding and the magnetic field produced by the main field windings. Interpoles are positioned between the main poles and are connected in series with the armature. Using the right-hand rule (thumb points in the direction of current, fingers in the direction of magnetic field), the resulting force helps define the polarity of the interpoles, ensuring they aid in commutation by reinforcing the magnetic field in the region of the commutator. Proper alignment and polarity of interpoles enhance the motor's performance and efficiency.
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
Alternating current is a flow of electrical energy in which the direction of electron flow reverses periodically. The mains electricity in your house is likely Alternating Current. The other form is Direct Current, where the direction of electron flow is in one direction only. Such as the flow from the batteries in your flashlight.
The "flow of current" is considered to be in the opposite direction.
The direction of the force that drives the machine is determined by the relative directions of the field and the armature current. By reversing the direction of both field and the armature current, the direction of the resulting force stays the same; you have to reverse the direction of one or the other; not both! Prove it for yourself, by applying Fleming's Left-Hand Rule (for conventional current flow); reverse the direction of both your first finger (field) and your second finger (armature current), and you thumb (direction of motion) will end up pointing in the same direction!
The direction of the force that drives the machine is determined by the relative directions of the field and the armature current. By reversing the direction of both field and the armature current, the direction of the resulting force stays the same; you have to reverse the direction of one or the other; not both! Prove it for yourself, by applying Fleming's Left-Hand Rule (for conventional current flow); reverse the direction of both your first finger (field) and your second finger (armature current), and you thumb (direction of motion) will end up pointing in the same direction!
The polarity of an electromagnet is determined by the direction of current flow. When current flows one way, the magnetic field is oriented in one direction, and when it flows the other way, the magnetic field is oriented in the opposite direction.
The polarity of an electromagnet can be determined by the right-hand rule. If the direction of the current flow is known, curl your right hand fingers in the direction of the current flow. Your thumb points in the direction of the north pole of the electromagnet.
The polarity of an electromagnet is determined by the direction of the electric current flowing through the wire coil. Reversing the direction of the current will change the polarity of the electromagnet.
pogi current flow in the armature conductor
The polarity of an electromagnet can be determined using the right-hand rule: wrap your fingers around the coil in the direction of the current flow (conventional current flow is from positive to negative), with your thumb pointing in the direction of the magnetic field. The side of the coil where your thumb points is the north pole of the electromagnet.
When an armature cuts through a magnetic line of force, it induces an electromotive force (EMF) due to electromagnetic induction, as described by Faraday's law. This induced EMF generates an electric current if the circuit is closed. The direction of the induced current can be determined using Lenz's law, which states that it will flow in a direction that opposes the change causing it. This principle is fundamental to the operation of electric generators and motors.
The direction of the magnetic field around the electric current also reverses when the direction of the current is reversed. This is determined by the right-hand rule, where the direction of the magnetic field is perpendicular to the direction of the current flow.
When the direction of current is reversed, the heating effect remains the same. The amount of heat generated is determined by the magnitude of the current and the resistance in the circuit, independent of the direction of the current flow.
To reverse a series wound motor, you must reverse the direction of the current flowing through both the armature and the field windings. This can be achieved by changing the connections of either the armature leads or the field leads, depending on the motor design.
Changes the poles of the magnet