The direction of resultant vector, for the cross product of two non parallel vectors is represented by right hand rule. If we point our index finger along vector A and middle finger along vector B, then the thumb signifies the direction of the resultant vector.
What is right-hand rule answer?
Fleming’s Right Hand Rule states that if we arrange our thumb, forefinger and middle finger of the right-hand perpendicular to each other, then the thumb points towards the direction of the magnetic force, the forefinger points towards the direction of the magnetic field and the middle finger points towards the
What is the use of right-hand rule?
Moving charges
We can remember this diagram using the right-hand rule. If you point your pointer finger in the direction the positive charge is moving, and then your middle finger in the direction of the magnetic field, your thumb points in the direction of the magnetic force pushing on the moving charge.
Why does the right-hand rule work?
The right hand rule works because we have all agreed on it. If we had all agreed on the left hand rule then the left hand rule would also work. This is similar to calling the charge on a proton “positive” and the charge on an electron “negative”.
What Fleming’s right-hand rule states?
Fleming’s right-hand rule gives which direction the current flows. The right hand is held with the thumb, index finger and middle finger mutually perpendicular to each other (at right angles), as shown in the diagram. The thumb is pointed in the direction of the motion of the conductor relative to the magnetic field.
What is the difference between Fleming’s left and right-hand rule?
Fleming’s left-hand rule gives the direction of magnetic force acting on a conductor whereas Fleming’s right-hand rule is used to find the direction of induced current.
When to use Fleming’s left and right-hand rule?
Fleming’s left-hand rule is used for electric motors, while Fleming’s right-hand rule is used for electric generators. In other words, Fleming’s left hand rule should be used if one were to create motion, while Fleming’s right hand rule should be used if one were to create electricity.
How does the right hand rule work to determine the direction of magnetic field?
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
How many right hand rules are there?
There are three common “Right Hand Rules” to help you remember some important concepts for E&M problems. The first right hand rule deals with the force applied by a magnetic field to a positive charge that is moving perpendicularly through that field.
What is Fleming’s left hand rule used for?
Fleming’s Left-Hand Rule is a simple and accurate way to find the direction of force/motion of the conductor in an electric motor when the magnetic field direction and the current direction are known. It was originally developed by John Ambrose Fleming, an English electrical engineer, in the late 19th century.
Why is Fleming’s left hand rule used?
According to this rule, if the forefinger of the left hand points the direction of the magnetic field, the middle-finger points the direction of current in the conductor then the thumb will point the direction of the force acting on the conductor.
What is another name of Fleming right-hand rule?
Fleming’s right hand is also h/a dynamo rule. It gives the direction of induced current produced in a straight conductor moving in a magnetic filed.
