Quick Answer: What Is The Right Hand Rule For Torque?

What are the 3 right hand rules?

Some would claim that there is only one right-hand rule, but I have found the convention of three separate rules for the most common situations to be very convenient.

These are for (1) long, straight wires, (2) free moving charges in magnetic fields, and (3) the solenoid rule – which are loops of current..

What is the application of right hand thumb rule?

Right hand thumb rule is used in determining the direction of torque, Angular velocity, Angular acceleration. Fleming left hand rule is used to find the direction of the motion of conductor in a D. C. motor. Fleming right hand rule is used to find the direction of the induced current in a A. C. generator.

How do I calculate torque?

A practical way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force. The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force. and the magnitude of the torque is τ = N m.

Is clockwise left or right?

Clockwise motion (abbreviated CW) proceeds in the same direction as a clock’s hands: from the top to the right, then down and then to the left, and back up to the top. The opposite sense of rotation or revolution is (in Commonwealth English) anticlockwise (ACW) or (in North American English) counterclockwise (CCW).

Can you have negative torque?

Technically, torque is also a vector – but that might be a little too much at this point. … Oh, torque can be positive or negative. Let us say that a positive torque would make a stationary object rotate counter clockwise and a negative torque would make it rotate clockwise.

What is torque equal to?

The torque, specified with regard to the axis of rotation, is equal to the magnitude of the component of the force vector lying in the plane perpendicular to the axis, multiplied by the shortest distance between the axis and the direction of the force component. …

Why torque is importance in our life?

Torque is used in many aspects of our lives, and plays an important role in determining how much force and in which direction is required for carrying out a certain task. Whether you are using a wrench, riding a bicycle, driving a car or any other thing, there are many ways torque is making things happen around you.

What are the factors that determine torque?

Expert Answer:The factors on which the turning effect of force or torque acts are:- The magnitude of the applied force.- The distance of the line of action of force from the point of rotation of that body.

What happens when torque is zero?

If the net torque on a rotatable object is zero then it will be in rotational equilibrium and not able to acquire angular acceleration.

What does direction of torque mean?

The magnitude of torque is a measure of the perpendicular distance to the line of action, and the direction of torque is perpendicular to both the force direction and the location of the line of action. It is also the same direction velocity would be pointing of the line of action was a rotation axis.

How do you use the right hand rule?

The right-hand rule imposes the following procedure for choosing one of the two directions. With the thumb, index, and middle fingers at right angles to each other (with the index finger pointed straight), the middle finger points in the direction of c when the thumb represents a and the index finger represents b.

What is right hand rule in electromagnetism?

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?

It works because we use the same right hand rule to determine the force the magnetic field exerts on a current. … And it is always the case that these sort of right/left hand rules occur in pairs that make the observable result not arbitrary.

What is the difference between left and right hand rule?

Fleming’s left-hand rule is used to find the direction of magnetic force acting in an electric motors while Fleming’s right-hand rule is used to find the direction of induced current in an electric generators.

What does the right hand rule tell you?

The right hand rule states that, to find the direction of the magnetic force on a positive moving charge, the thumb of the right hand point in the direction of v, the fingers in the direction of B, and the force (F) is directed perpendicular to the right hand palm.

What are the two right hand rules?

The second right hand rule deals with the magnetic field that is induced by current moving through a wire. Take your right hand, and wrap your fingers around the wire, with your thumb pointing in the direction that the current is flowing. Your fingers now represent the direction of the lines of magnetic force!

What is negative torque in motor?

Following convention, we define positive rotation as being in the counter clockwise direction, therefore positive torque is counter-clockwise and negative torque is clockwise. Considering the case with an electric motor, we often say e.g. the motor drives a load of 10Nm.

How do you know if torque is positive or negative?

How to determine the direction of torqueThe direction of rotation can be clockwise (cw) or counterclockwise (ccw). … For example, a torque that rotates an object counterclockwise is a positive torque (see figure 6 below). … A torque that rotates an object clockwise is a negative torque (see figure 7 below).

Does torque have direction?

Torque is inherently a vector quantity. Part of the torque calculation is the determination of direction. The direction is perpendicular to both the radius from the axis and to the force. It is conventional to choose it in the right hand rule direction along the axis of rotation.