Under what condition torque on current loop is zero?
(c) Zero (minimum) torque occurs when θ is zero and sin θ = 0. (d) The torque reverses once the loop rotates past θ = 0. τ=wIlBsinθ τ = w I l B sin .
Does the torque on a planar current loop?
Hence torque on a planar current loop in a magnetic field does not change when its shape is changed without changing its area.
Is there a net torque on the loop of wire from the magnetic field?
A uniform magnetic field exerts no net force on a current loop but it does exert a net torque. The two forces are in opposite directions so there’s no net force but there is a torque that tends to make the loop rotate about an axis running through the center of the loop.
How do you know if torque is zero?
An applied force can result in zero torque if there is no lever arm or the applied force is parallel to the lever arm (see Figure 3 and 4 below).
What is the formula to calculate torque?
The magnitude of a torque about a fixed axis is calculated by finding the lever arm to the point where the force is applied and using the relation |→τ|=r⊥F | τ → | = r ⊥ F , where r⊥ is the perpendicular distance from the axis to the line upon which the force vector lies.
What is 1 Nm of torque?
Torque is measured in Newton metres (Nm) or you might see the imperial measurement of lb-ft (pounds-feet). If you want to calculate the conversion for yourself, 1 Nm is equivalent to 0.738 lb/ft. See the pulling power of torque in our tug of war video.
What is average torque?
Average torque would just be the time average of that varying quantity averaged over the time it takes to complete a revolution. Horsepower is the product of torque and engine rpm. Torque varies as the engine rpm varies. Average torque is the time average of it.
What is Torque and how is it calculated?
The Meaning of Torque Torque (also called moment — mostly by engineers) is calculated by multiplying force and distance. This is a vector with a magnitude of the distance from where the force is applied to the axis of rotation. It points from the axis of rotation toward the point where the force is applied.
How do you calculate weight torque?
To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.
Does torque have direction?
Right Hand Rule for Torque 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.
What is the difference between force and torque?
Force has units of Newtons, while torque, being the product of a force and a distance, has units of Newton ⋅ meters. Torque and force also differ in that force is a true vector, whereas torque is a pseudovector, that is, it picks up a sign flip under certain kinds of coordinate transformations.
What is the relationship between torque and pressure?
Few of the common Non-SI units are bar, psi, etc. Torque is denoted as the rotational equivalent of linear force. While power is the work done in a particular time interval. The relation between torque and power is, they are directly proportional to each other.
In what direction should a force be applied?
In what direction should a force be applied to produce maximum torque? The force should be applied in a perpendicular direction. How do clockwise and counterclockwise torques compare in a balanced system? They are equal.
What is the difference between torque and horsepower?
What’s the Difference Between Horsepower and Torque? The two are very much two sides of the same coin as one goes with the other—torque being the force and horsepower being the rate at which that force is done. The difference is torque is doing the work, while horsepower is how fast that work is being done.
Why does torque drop at high rpm?
At high RPM, torque drops off primarily from intake and exhaust flow restriction. Volumetric Efficiency declines because the engine can’t breathe any faster. Mechanical efficiency also declines at higher RPM, due to increased frictional resistance. This further reduces torque at the output.
Does torque feel or horsepower?
In very simple terms, torque is the force you feel pushing you back in your seat on acceleration, while horsepower is the speed achieved at the end of that acceleration.
Does higher torque mean faster acceleration?
A car with more hp than torque will always be quicker since this gives a car acceleration and speed. Higher torque doesn’t mean one vehicle will necessarily be faster than another, though. For example, a Ford F-250 makes 925 lb-ft of torque, while a Honda S2000 has just 162 lb-ft.
Is 400 ft lbs of torque a lot?
Having 400 pounds of torque down low means you have more horsepower down low. Having 400 pounds of torque up high means you have even more horsepower then you had down low.
What’s more important HP or torque?
Torque, simply, is the ability of a vehicle to perform work — specifically, the twisting force applied by the crankshaft. Horsepower is how rapidly the vehicle can perform that work. This is also why people talk about “low-end torque” being important for better power at slower speeds.
What is better for towing torque or horsepower?
The answer is- both are important but have different functions. But for the specific work of towing, torque is more important. To put it simply, Torque lets you work but Horsepower makes the work go fast. To sum up, torque plays a greater role in towing than horsepower.