In mathematics and physics, the right rule is a common cheat sheet for understanding the notation conventions of 3-dimensional vectors. It was invented in the late 19th century by British physicist John Ambrose Fleming for use in electromagnetism. When an electric current flows through a straight wire, it induces a magnetic field. To apply the straight grip ruler, align your thumb with the direction of conventional current (positive to negative) and your fingers indicate the direction of the magnetic flux lines. A conventional current consists of moving loads of a positive nature. When a conventional current passes through a conductive wire, the wire is affected by a magnetic field that pushes it. We can use the right ruler to identify the direction of the force acting on the live wire. In this pattern, your fingers point in the direction of the magnetic field, your thumb points in the direction of the conventional current flowing through the wire, and your palm indicates the direction in which the wire is being pushed (force). When a conductor, such as a copper wire, moves through a magnetic field (B), an electric current (I) is induced in the conductor. This phenomenon is known as Faraday`s law of induction. When the conductor is moved in the magnetic field, there is a relationship between the direction of motion of the conductor (speed), the magnetic field and the induced current. We can use Fleming`s right-hand rule to examine Faraday`s law of induction, represented by the equation: To apply the correct rule to Lenz`s law, first determine whether the magnetic field increases or decreases through the loop. Recall that magnets create magnetic field lines that move from the magnetic north pole to the magnetic south pole.

If the magnetic field increases, then the direction of the induced magnetic field vector is in the opposite direction. When the magnetic field in the loop decreases, the induced magnetic field vector occurs in the same direction to replace the decrease in the original field. Next, point your thumb at the induced magnetic field and bend your fingers. Your fingers point in the direction of the induced current. Couples that occur counterclockwise are positive couples. Alternatively, couples that occur clockwise are negative couples. So what happens when your hand points in or out of the paper? Couples pointing outward from the paper should be analyzed as positive couples, while couples pointing inward should be analyzed as negative couples. The rule of good gripping is a convention derived from the convention on vectors. For example, if you apply the ruler to the current in a straight wire, the direction of the magnetic field (counterclockwise instead of the clock from the tip of your thumb) is the result of this convention and not an underlying physical phenomenon. To apply the right hand ruler to crossed products, align your fingers and thumb at right angles. Then point your index finger in the direction of vector a and the middle finger in the direction of vector b.

Your right thumb points in the direction of the vector product, a x b (vector c). Another form of right-handed ruler, sometimes called the right grip rule, is used in situations where a vector needs to be mapped to the rotation of a body, magnetic field, or liquid. Alternatively, if a rotation is specified by a vector and it is necessary to understand how the rotation takes place, the right handle rule is applicable. The plane formed by the direction of the magnetic field and the velocity of the charged particle is perpendicular to the force. Since the force occurs perpendicular to the plane formed by the velocity of the particle and the magnetic field, we can use the correct ruler to determine its orientation. When an electric current flows through a magnet, it creates a magnetic field. To use the correct gripping rule in case of a magnet problem, point your fingers in the direction of the conventional current and wrap your fingers as if they were around the magnet. Your thumb points in the direction of the magnetic field lines inside the solenoid valve. Note that the magnetic field lines on the outside of the magnet go in the opposite direction. They wrap around the solenoid coil from the inside out. A form of legal rule is used in situations where an ordered operation must be performed on two vectors a and b, the result of which is a vector c perpendicular to a and b. The most common example is the cross vector product.

The rule of law applies the following procedure to select one of the two directions. A charged particle is a particle with an electric charge. If a stationary charged particle exists in a magnetic field, it does not undergo magnetic force; However, as soon as the charged particle moves in a magnetic field, it undergoes an induced magnetic force that moves the particle from its original orbit. This phenomenon, also known as the Lorentz force, is consistent with the rule that „magnetic fields don`t work.“ The equation used to determine the amplitude of the magnetic force acting on a charged particle (q) moving a magnetic field (B) at a speed of v at an angle of θ is: The right grip rule is particularly useful for solving problems monitoring a live wire or magnet. In both cases, the right gripping rule is applied to two applications of Ampère`s circuit law, which connects the integrated magnetic field around a closed loop to the electric current flowing in the closed-loop plane. One of the best ways to help students become familiar with the right hand rule is to give a visual demonstration that will help them identify and correct their misconceptions about orthogonal relationships and coordinate systems. The rule on the right states that: To determine the direction of the magnetic force towards 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 point in the direction of the resulting magnetic force (F). Negative charges are affected by a force in the opposite direction. While a magnetic field can be induced by a current, a current can also be induced by a magnetic field. We can use the second rule of the right grip, sometimes called the rule of the right grip, to determine the direction of the magnetic field generated by a current. To use the straight grip ruler, point your right thumb in the direction of the current flow and bend your fingers. The direction of your fingers reflects the wavy direction of the induced magnetic field.

This version of the rule is used in two complementary applications of Ampère`s circuit law: a cross product or vector product is created when an ordered operation is performed on two vectors, a and b. The cross product of vectors a and b is perpendicular to a and b and is perpendicular to the plane it contains. Since there are two possible directions for a cross product, the correct rule must be used to determine the direction of the cross product vector. If we look at the current flow as the movement of the positive charge carriers (conventional current) in the image above, we notice that the conventional current moves upside down.