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What are damping devices?
due to reflecting torque pointer moves in one direction by due to controlling torque pointer moves in opposite direction therefore pointer oscillate in forward and backward direction.if there is no deflecting torque the device to ensure that the pointer comes to rest quickly with minimum oscillation at its correct reading position is known as damping device...
What are Applications of flange coupling?
Flange couplings are widely used in various applications due to their ability to connect rotating shafts securely while allowing for easy disassembly. They are commonly found in machinery such as pumps, compressors, and motors, where alignment and torque transfer are crucial. Additionally, flange couplings facilitate maintenance in industrial settings, enabling quick replacement or repair of components without disrupting the entire system. Their robust design also makes them suitable for high-torque applications in heavy-duty equipment.
Why is the torque speed characteristics of a universal motor on ac source different from the torque speed characterisctic of the same motor on a dc source?
The torque-speed characteristics of a universal motor differ between AC and DC sources primarily due to the effects of reactance and phase differences in AC operation. When powered by AC, the inductance of the motor introduces additional impedance, which can lead to a reduction in torque at higher speeds due to increased reactance. In contrast, when powered by DC, the motor operates without these reactance effects, allowing for a more linear torque-speed curve with higher torque at lower speeds. Consequently, the performance characteristics shift significantly between the two power sources.
How torque is produced in a induction motor?
Torque is a Force applied at a Moment Arm. Or a force applied to a bar of a set length. Torque is a unit of Foot-pounds. If you have a ratchet wrench that has a 1 foot handle and you use it to torque a Bolt by applying a force of 20 lbs this will produce a 20 ft-lb torque load to the bolt. ( 1 Foot X 20 Lbs). This can be converted to 240 inch-lbs. The torque produced by car engines are also measured in terms of foot-pound of torque. This defines the power that the engine produces at the Shaft. This is convenient to use in calculating how much power is delivered to a car's transmission or wheels to allow the engineer to determine how fast the car will go, etc.
How does the torque vary when the fan is the load?
When a fan operates as a load, the torque varies based on the speed and the characteristics of the fan itself. As the speed increases, the load torque typically increases due to the increased aerodynamic resistance and power requirements to move air. Conversely, when the speed decreases, the torque required also decreases. This relationship is crucial for understanding fan performance and efficiency in various applications.
Why are the opposite poles of two magnets attracted to each other due to magnetic force?
The opposite poles of two magnets are attracted to each other due to magnetic force because of the alignment of their magnetic fields. This alignment creates a force that pulls the opposite poles together, resulting in attraction.
What does alignment have to do with magnet strenfth?
Alignment refers to the arrangement of magnetic domains within a material. When these domains are aligned in the same direction, the magnetic strength is increased because their magnetic fields reinforce each other. In contrast, if the domains are randomly oriented, the magnetic strength is weaker due to opposing magnetic fields canceling each other out.
Why are iron atoms affected by magnetic fields?
Iron atoms are affected by magnetic fields due to their electronic structure, which includes unpaired electrons. These unpaired electrons generate a magnetic moment, allowing the atoms to align with an external magnetic field. The alignment of these magnetic moments in iron can lead to ferromagnetism, where the material exhibits a strong magnetic response. This property is due to the interactions between neighboring iron atoms, which can reinforce the alignment of their magnetic moments.
If a matrial is magnitas it becomes a?
If a material is magnetic, it becomes attracted to other magnetic materials due to the presence of magnetic fields. This attraction occurs based on the alignment of the material's magnetic domains.
When due for rotation and balance and alignment which should you do first?
Rotate and balance, then alignment.
Are Iron Atoms known to be magnetic?
Iron atoms are inherently magnetic due to the alignment of their electron spins. This property allows iron to be attracted to magnetic fields and exhibit magnetic behavior.
What is the planar alignment of minerals due to differential stress during metamorphism?
During metamorphism, minerals align perpendicular to the direction of maximum stress, which is known as foliation. This alignment results in a planar fabric within the rock, giving it a layered appearance. The degree of alignment can vary from a weak preferred orientation to a strong and well-developed foliation.
What is the interaction between the magnetic fields of two bar magnets?
When two bar magnets are brought close together, their magnetic fields interact. Like poles repel each other, while opposite poles attract. This interaction is due to the alignment of the magnetic domains within the magnets.
What is the torque due to gravity on the disk?
The torque due to gravity on the disk is the force of gravity multiplied by the distance from the center of the disk to where the force is applied.
Is amphibolite foliated?
Yes, amphibolite is a foliated metamorphic rock. It forms through the metamorphism of basalt or gabbro and typically exhibits a well-developed foliation called schistosity due to the alignment of its mineral grains.
What blank poles of magnets attract to each other?
The North Pole of one magnet and the South Pole of another magnet attract each other. This is due to the alignment of magnetic fields, where opposite poles are attracted to each other.
Metamorphic rock with a banded appearance due to the alignment of material are?
No
