Quick Answer: What Is Torque In Magnetic Field?

What is a positive torque?

Counterclockwise is the positive rotation direction and clockwise is the negative direction.

For example, a torque that rotates an object counterclockwise is a positive torque (see figure 6 below)..

What is 1 Nm of torque?

The newton-metre (also newton metre; symbol N⋅m or N m) is a unit of torque (also called moment) in the SI system. One newton-metre is equal to the torque resulting from a force of one newton applied perpendicularly to the end of a moment arm that is one metre long. The nonstandard notation Nm occurs in some fields.

How much torque is 1 horsepower?

The definition of 1 Horsepower is displacing 1 lb. 33,000 ft. in one minute or 33,000 lb-ft / minute.

What is the position of the loop when the current is maximum?

What is the position of the loop when the current is maximum? The maximum current is when the loop is halfway into the region of the field. The maximum current is when the loop is at the beginning of the region of the field. The maximum current is when the loop is at the end of the region of the field.

What is the unit of torque?

newton-metreTorque/SI units

How does force affect torque?

Torque is a measure of the force that can cause an object to rotate about an axis. Just as force is what causes an object to accelerate in linear kinematics, torque is what causes an object to acquire angular acceleration. … The direction of the torque vector depends on the direction of the force on the axis.

Where is torque used?

The primary use of torque is to make the car accelerate, and the number usually quoted is the maximum torque of the internal-combustion engine at the crankshaft – and that’s usually higher than the amount at the wheels.

What is torque on a coil?

If a coil carrying a current is placed in a magnetic field it will experience a force on two of its sides in such a way as to make the coil rotate. … This effect is the basis of all electric motors and moving coil meters.

What is the torque experienced by a current carrying loop kept in a magnetic field?

Let us consider a rectangular loop such that it carries a current of magnitude I. If we place this loop in a magnetic field, it experiences a torque but no net force, quite similar to what an electric dipole experiences in a uniform electric field.

How do we 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.

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.

How is peak torque calculated?

Calculate torque (T) using the formula T = 5,252 x horsepower/rpm. The results are measured in pound-feet. For example, if you have a 40-horsepower motor designed to operate at a peak of 1,200 rpm, the formula would be T = (5,252 x 40)/1200 = 175.07 lb. -feet.

Is torque proportional to radius?

Torque is force times distance (or radius). If the force is zero, the torque is also zero because they are directly proportional to each other.

Why is torque so important?

Torque is a crucial part of generating power from a car’s engine, as it represents the load an engine can handle to generate a certain amount of power to rotate the engine on its axis. The force is measured in pounds (lb) per foot (ft) of rotation around one point.

What is the right hand rule for torque?

The direction of the torque can be found by the right-hand rule for cross products: put your fingers in the direction of the first vector ( ) and your palm facing in the direction of the second vector ( ); your thumb will point in the direction of the cross product ( ).

How do you find the torque of a magnetic field?

The direction of A is perpendicular to the loop, in the direction given by the “loop RHR”: curl your fingers around with the current, and your thumb points in the direction of µ. 2. The torque on the dipole is τ = µ×B, where B is the external magnetic field.

What is a torque in physics?

Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point, and will label ‘O’. We will call the force ‘F’.