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Why it is an advantage for armature to rotate in radial magnetic field rather than uniform?
1.maximum torque is experienced
2.torque is uniform for all positions of coil
What else can I help you with?
Are radial magnetic fields measurable?
Yes, radial magnetic fields are measurable using techniques such as magnetic field sensors or magnetometers. These devices can detect and quantify the strength and direction of magnetic fields, including radial ones.
Why radial magnetic field?
A radial magnetic field is often used in applications where the magnetic field needs to be concentrated in a particular area, such as in electric motors or generators. By having a radial magnetic field, the magnetic flux can be directed efficiently through the device and produce the desired output. Additionally, a radial magnetic field can minimize energy losses and improve the overall performance of the device.
How is magnetic field made radial in a moving coil galvanometer?
The magnetic field in a moving coil galvanometer is made radial by surrounding the coil with a cylindrical magnetic core. When current flows through the coil, it creates a magnetic field perpendicular to the coil. This magnetic field interacts with the radial magnetic field of the core, causing a torque on the coil that deflects the pointer.
What will the radial clearance be when the diametrical clearance cannot be measured?
If the diametrical clearance cannot be measured directly, the radial clearance can be calculated using the formula: Radial Clearance = (Diameter of the larger part - Diameter of the smaller part) / 2 This formula assumes that the parts are concentric and that the radial clearance is uniform around the circumference.
What is the distribution of the electric field inside an insulating cylinder?
The electric field inside an insulating cylinder is uniform and radial, meaning it points outward from the center of the cylinder in all directions.
Are radial magnetic fields measurable?
Yes, radial magnetic fields are measurable using techniques such as magnetic field sensors or magnetometers. These devices can detect and quantify the strength and direction of magnetic fields, including radial ones.
Why radial magnetic field?
A radial magnetic field is often used in applications where the magnetic field needs to be concentrated in a particular area, such as in electric motors or generators. By having a radial magnetic field, the magnetic flux can be directed efficiently through the device and produce the desired output. Additionally, a radial magnetic field can minimize energy losses and improve the overall performance of the device.
Why soft iron is placed in moving coil galvanometer?
1. to intensify the magnetic field by reducing the length of airgap across which the magnetic flux has to pass; 2. to give a radial magnetic flux of uniform density, thereby enabling the scale to be uniformly divided.
How is magnetic field made radial in a moving coil galvanometer?
The magnetic field in a moving coil galvanometer is made radial by surrounding the coil with a cylindrical magnetic core. When current flows through the coil, it creates a magnetic field perpendicular to the coil. This magnetic field interacts with the radial magnetic field of the core, causing a torque on the coil that deflects the pointer.
Whats meant by radial magnetic field?
A radial magnetic field ensures that the plane of the coil (rotating within the magnetic field, in say a DC motor) is always flat within the external magnetic field ensuring maximum torque in (nearly) all positions. Hope this helps!
Why permanent magnets are curve in dc motor?
To provide a radial magnetic flux.
What causes radial thrust in a centrifugal pump?
When a centrifugal pump operates at its best efficiency point (BEP), the flow angles match with the impeller vane angles. At the BEP, the flow velocity in the volute is uniform around the volute (i.e., there is not acceleration of the fluid in the volute). Therefore, the pressure around the volute is uniform. The uniform pressure around the circumference results in a net zero radial force on the impeller (or the shaft). Note this is theoretical. In practice even at BEP, there is a small radial load because the pressure is not uniform. If the pump is operated away from the BEP, the flow velocities in the volute are non-uniform which results in a non-uniform pressure field and a net radial load (can be obtained by integrating the pressure around the circumference of the volute or the impeller).
What is the importance of radial magnetic field in moving coil galvanometers?
To produce a constant torque on the coil
What type of microwave tube amplifier used an axial magnetic field and radial magnetic field?
That would be a TWT amplifier (traveling wave tube).
What will the radial clearance be when the diametrical clearance cannot be measured?
If the diametrical clearance cannot be measured directly, the radial clearance can be calculated using the formula: Radial Clearance = (Diameter of the larger part - Diameter of the smaller part) / 2 This formula assumes that the parts are concentric and that the radial clearance is uniform around the circumference.
What is galvanometer magnetic force and motor effect?
A motor effect is when magnetic flux lines interact with the current flow in the current conducting wire (a production of current means there is a production of a magnetic field, thus the magnetic field of a permanent magnet interacts with the magnetic field of the current), hence causing a motor effect, where electric energy is transformed into mechanical energy. In a galvanometer, the concept of the motor effect is used for it to detect and measure the magnitude of small electric currents as an instrument. A galvanometer uses radial magnets which cover more area of the rotor (this is where the needle is attached), as this rotor consists of an armature and loops of wire, it is perpendicular to the magnetic flux lines of the radial magnet. Therefore as the current flows through the coil, a magnetic field is produced, and the motor effect occurs allowing the needle to move on the scale.
How you repair armatur wire broken wire?
It's far better to have the armature re-wound by a specialist repairer. Trying to repair reliably, a break of wire or insulation in a tightly-wound armature revolving within a stator with very little radial clearance,is not really feasible; and certainly not easy. To be honest I'd look at a new machine if possible, by exchange if available.
