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Which motor has a higher starting torque?
A series-wound commutator motor has the best starting torque because the torque is proportional to the square of the current, and the starting current is set by a current-limiting resistor which is switched out as the motor builds up speed.
Why ac motors are not used in railways?
Ac motor has a low starting torque so that DC series motor used in railways cause DC motor has high starting torque
Why is the starting torque of a wound -rotor motor higher per ampere of starting current than that of a squirrel cage motor?
The starting torque of a wound-rotor motor is higher per ampere of starting current than that of a squirrel cage motor due to the ability to control the rotor resistance. In a wound-rotor motor, external resistance can be added to the rotor circuit, allowing for increased torque production during startup without drawing excessive current. In contrast, squirrel cage motors have a fixed rotor resistance, which limits their starting torque and results in a relatively lower torque per ampere of starting current. This design feature enables wound-rotor motors to provide better performance in high-torque applications.
Why synchronous motors does not have starting torque?
Becoz it use frequecy to start
How is pull out torque developed?
With some motor designs, as the motor starts to accelerate, its torque tends to fall somewhat before starting to increase again. The point of lowest torque in this region of the curve is termed the 'pull-up torque'.
Can 10kg with a normal torque caused by gravitation lift up 5kg with a greater torque?
yes
What is starting torque?
The torque which is produced during the starting of motor is simply called as starting torque.
Can small force exert greater torque?
Not exactly,torque is the force that affects rotational motion; the greater the torque, the greater the change in rotational motion. It is always specified with regard to the axis of rotation.
Which motor has a higher starting torque?
A series-wound commutator motor has the best starting torque because the torque is proportional to the square of the current, and the starting current is set by a current-limiting resistor which is switched out as the motor builds up speed.
Why starting torque is not the maximum torque value?
Starting torque is the torque produced by a motor when it begins to rotate from a standstill. It is typically lower than the maximum torque because maximum torque is achieved at a specific operating speed and load conditions, allowing the motor to utilize its full power output. Additionally, starting conditions often involve resistance and inertia that limit the initial torque, while maximum torque can be reached under optimal conditions when the motor is already in motion.
Is torque a force and how does it relate to the concept of force in physics?
Torque is not a force itself, but it is a measure of the rotational force applied to an object. In physics, torque is related to force through the concept of leverage and the distance from the point of rotation. The greater the torque applied, the greater the rotational force exerted on an object.
Deeper the holes greater torque?
when u make a deeper hole then more surface area is in contact with the walls and more chips is in a flutes, so that's why the torque is greater
Why the starting torque of a dc series motor is high?
load is heavier so starting torque is requiredAnswerBecause the same current is passing through both the armature and field windings, the torque is proportional to the squareof the current. Since the starting current is alway high (no back emf), the torque will be very high indeed.
Which is greater the Torque of the engine or the Torque of the wheels in order for the car to move?
The torque would be the same, as torque measures the rotational force between the two objects, not necessarily the output at either end.
Which has a greater torque a perpendicular force applied at the end of a wrench handle or an equal force applied in the same direction near the middle of the handle?
the perpendicular force applied at the end of a wrench handle. Because torque= Fd / T = F d cos θ therefore the greater the distance the greater the torque. T=torque F=force d=distance cos=cosine θ=theta
Why the pull up torque is less than starting torque?
at starting or initial stage there is no acceleration,it requires more force or power to move any body during initial stage,where as in running condition,it also requires some force or power whioch is less then the imitial power.hence the starting torque is always > pull up torque
Why would it be harder to open the door if you ppushed on the center?
If you push on the center there is less distance to the hinge. The greater the distance from the hinge, the greater the torque to open it for the same force ( force x distance = torque)
