This can be seen by holding your hands together with palms up and fingers curled. If the curl of the fingers represents a movement from the first or x-axis to the second or y-axis, then the third or z-axis can right hand grip rule point along either right thumb or left thumb. The right-hand rule is an intuitive way of visualizing vector directions in 3D. It is easy to remember and apply, and it works for any two vectors that are perpendicular to each other.
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However, it seems that the right hand rule is applied to other aspects of physicsas well. For example, André-Marie Ampère, a French physicist and mathematician, created a right hand rule for circuits and electric currents. This is used when a vector must be definedto represent the rotation of a body, a magnetic field, or a fluid. This right hand rule works exactly the same way as the one I have described above. Your thumb will point to the right, in the direction of the particle’s velocity.
It should be kept in mind that this rule should only be performed with the right hand. Apart from determining the relationship between current and magnetic field it also shows that moving charges can create magnetic fields. The direction of flux lines of magnetic field, motion of the conductor and induced EMF and current can be found by Fleming’s left hand and right hand rules which we have discussed in the previous post. The right-hand rule is also used to determine the direction of torque, angular momentum, and other quantities in mechanics. For example, when a wrench is used to tighten a bolt, the direction of the torque acting on the bolt can be determined using the right-hand rule. Point your thumb in the direction of the wrench force, and your fingers curl in the direction of the torque.
Applications
It reveals a connection between the current and the magnetic field lines in the magnetic field that the current created. Ampère was inspired by fellow physicist Hans Christian Ørsted, who observed that needles swirled when in the proximity of an electric current-carrying wire and concluded that electricity could create magnetic fields. When an electric current passes through a straight wire, it induces a magnetic field. To apply the right hand grip rule,align your thumb with the direction of the conventional current (positive to negative) and your fingers will indicate thedirection of the magnetic lines of flux. In simple words, a current carrying conductor creates a magnetic field around it.
There are many complex topics in the field of physics and right-hand grip rule is one among them. A student needs to understand the topic and the elements of it in order to learn it. The right-hand grip rule is also known as corkscrew-rule and it was named after the French physicist and mathematician Andre-Marie Ampere. It is used to show the rotation of a body or a magnetic field and represents the connection between the current and magnetic field around the wire. When the magnetic flux through a closed loop conductor changes, it induces a current within the loop. The inducedcurrent creates a secondary magnetic field that opposes the original change in flux that initiated the induced current.The strength of the magnetic field passing through a wire coil determines the magnetic flux.
Fleming’s Left & Right Hand Rules
One of the most common applications of the right-hand rule is in electromagnetism. For example, when a wire carrying an electric current is placed in a magnetic field, a force is exerted on the wire due to the interaction between the magnetic field and the current. The direction of this force can be determined using the right-hand rule.
The rule is not only limited to the right hand but can also be applied using the left hand by reversing the direction of the vectors. The right-hand rule is a fundamental concept in physics, and it is important for students and professionals alike to understand its applications and limitations. We have also listed down the major differences between Fleming’s left-hand rule and right-hand rule. In which we are looking directly along the axis of rotation (so it looks like a dot) and the force lies in a plane perpendicular to that axis of rotation. We use the diagramatic convention that, the point at which the force is applied to the rigid body is the point at which one end of the arrow in the diagram touches the rigid body.
- The setup described in the above statement tells us how the right-hand thumb rule helps to determine the direction of the magnetic field created by a current-carrying conductor.
- This rule is used in two complementary applications of Amperes circuital law which are; when an electric current is passed through a solenoid, a magnetic field is created.
- A conventional current is composed of moving charges that are positive in nature.
- This rule called ‘Fleming’s Right-hand rule’, helps us to find out the direction of the induced current in the moving conductor placed in a magnetic field that is perpendicular to the direction of the movement of the just mentioned conductor.
Then, curl your fingers toward the second vector listed in the cross product without moving your palm. You must rotate your hand to whatever orientation it requires for this to be possible, while keeping your thumb perpendicular to your fingers through the entire process. In the example depicted below the cross product points “out” of the page, the same direction as the thumb. The various right- and left-hand rules arise from the fact that the three axes of three-dimensional space have two possible orientations.
As the magnetic north pole gets closer to the loop, it causes the existing magneticfield to increase. Since the magnetic field is increasing, the induced current and resulting induced magnetic field willoppose the original magnetic field by reducing it. This means that the primary and secondary magnetic fields will occur inopposite directions. When the existing magnetic field is decreasing, the induced current and resulting induced magneticfield will oppose the original, decreasing magnetic field by reinforcing it. Thus, the induced magnetic field will have thesame direction as the original magnetic field.
Another Force on a Current from a Magnetic Field
Point your thumb in the direction of the current flow, and your fingers in the direction of the magnetic field. Thumb points in the direction of the torque vector and your curled fingers will show the direction of rotation. There are certain situations where right-hand grip rule can be applied. This rule is used in two complementary applications of Amperes circuital law which are; when an electric current is passed through a solenoid, a magnetic field is created.
Your thumb is pointing up, but since these are negative charges, its opposite and you flip your hand and you find that the direction of the magnetic force is actually pointing down. Therefore it makes sense that the electrons would accumulate at the bottom since its magnetic force is pushing them towards there. To apply the right hand rule to Lenz’s Law, first determine whether the magnetic field through the loop is increasing ordecreasing.