How could one tell the direction of the magnetic force on a straight wire carrying a current?

The magnetic field made by a current in a straight wire curls around the wire in a ring. You can find it by pointing your right thumb in the direction of the current in the wire and curling your fingers. Your fingers will be curled in the same direction as the magnetic field around the wire.

How can you find the direction of a magnetic field at a point through which the magnetic line of force is given?

The direction of a magnetic field at a point is determined by placing a small compass needle. The N – pole of compass indicates the direction of magnetic field at that point.

What is the direction of the magnetic force on the current?

The magnetic force on a current-carrying wire is perpendicular to both the wire and the magnetic field with direction given by the right hand rule.

Can you find the direction of magnetic field from a magnetic field line?

A tangent drawn on a magnetic field line gives the direction of the magnetic field at that point. The direction can also be determined by using a magnetic compass. When a magnetic compass is placed on a magnetic field line, then it always points in the direction of the magnetic field at that point.

What is the direction of magnetic force?

The direction of the force due to a magnetic field is perpendicular to the direction of motion. distance away from the wire, and is called the permeability of free space.

What is the direction of current?

The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.

How do you determine the direction of a magnetic field in a solenoid?

To do this, point your right thumb in the direction that the current travels in the coiled wire in the solenoid and curl your fingers. * The direction your fingers point will determine the direction of the magnetic field created by the current. Alternately the right-hand-grip rule is easier to use with solenoids.

How do you determine the direction of the magnetic field in the right hand rule?

The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, point your right thumb in the direction of the velocity (v), your index finger in the direction of the magnetic field (B), and your middle finger will point in the direction of the the resulting magnetic force …

What is the direction of magnetic field in a magnet?

The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Permanent magnets can be made from ferromagnetic materials.

What is the direction of the magnetic field created by a wire?

The direction of the magnetic field created by a long straight wire is given by right-hand rule 2 (RHR-2): Point the thumb of the right hand in the direction of current, and the fingers curl in the direction of the magnetic field loops created by it.

What is the right hand rule for magnetic field?

Right-Hand Rule #2 (RHR #2) Right-Hand Rule #2 determines the direction of the magnetic field around a current-carrying wire and vice-versa Using your right-hand: Curl your fingers into a half-circle around the wire, they point in the direction of the magnetic field, B Point your thumb in the direction of the conventional current.

How to determine the strength of a magnetic field?

Point your thumb in the direction of the conventional current. The Right-Hand Rules give only the direction of the magnetic field. In order to determine the strength of a magnetic field , some useful mathematical equations can be applied.

Do the two long parallel wires in the accompanying figure carry current?

The two long, parallel wires shown in the accompanying figure carry currents in the same direction. If and what is the magnetic field at point P? The accompanying figure shows two long, straight, horizontal wires that are parallel and a distance 2 a apart. If both wires carry current I in the same direction, (a) what is the magnetic field at (b)