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What is the factors on which the induced EMF in a coil rotating in a uniform magnetic field depends?
The induced EMF in a coil rotating in a uniform magnetic field depends on the strength of the magnetic field, the number of turns in the coil, the area of the coil, the speed of rotation, and the angle between the magnetic field and the plane of the coil.
What is the relationship between electrical frequency and magnetic field speed for an ac machine?
In an AC machine, the electrical frequency of the input power supply determines the rotational speed of the magnetic field, which interacts with the conductors in the machine to produce electrical power. The relationship between electrical frequency and magnetic field speed is directly proportional – an increase in electrical frequency results in a corresponding increase in the speed of the rotating magnetic field.
What factors affect the voltage produced by a dynamo?
The factors that affect the voltage produced by a dynamo include the speed of rotation, the strength of the magnetic field, the number of turns in the coil, and the size of the wire used in the coil. All these factors contribute to the amount of electromagnetic induction that occurs and thus influence the generated voltage.
What must happen in order electric charges to produce a magnetic field?
Electric charges must be in motion to produce a magnetic field. When electric charges move, they generate a magnetic field around them. The strength of the magnetic field depends on the speed and direction of the moving charges.
What effect does a magnetic field have on a charge moving perpendicular to the field?
A charge moving perpendicular to a magnetic field experiences a force that is perpendicular to both the charge's velocity and the magnetic field direction. This force causes the charge to move in a circular path around the field lines, with the radius of the circle determined by the charge's speed and the strength of the magnetic field. This phenomenon is known as magnetic deflection.
Does the moon have an active magnetic field?
To have an active magnetic field you must have a reasonably fast rotation speed, and a molten metal core. The earths moon has neither of these, so the answer is No, the moon doesn't have a magnetic field of any kind.
What is the factors on which the induced EMF in a coil rotating in a uniform magnetic field depends?
The induced EMF in a coil rotating in a uniform magnetic field depends on the strength of the magnetic field, the number of turns in the coil, the area of the coil, the speed of rotation, and the angle between the magnetic field and the plane of the coil.
What is the function of field winding in DC generator?
The motor needs the current and magnetic flux to create motion The magnetic field is created by field winding where as armature carries the current resulting into the rotation of armature
If the earth rotated more slowly would you expect it to have as strong a magnetic field?
A slower rotation of the Earth would likely result in a weaker magnetic field due to the relationship between the planet's rotation and the geodynamo process that generates the magnetic field. A slower rotation may impact the convection of molten iron in the Earth's outer core, which is a key factor in the generation of the magnetic field.
If the Earth rotated more slowly would you expect it to have a strong magnetic field?
No it would probably weaken. The Earth's magnetic field is due to a combination of two factors: Earth's relatively high iron content and Earth's relatively high rotation speed. If you reduced either factor you should expect the magnetic field's strength to be reduced.
What is the factors determining induced emf in dc machine?
The factors determining induced electromotive force (emf) in a DC machine include the strength of the magnetic field, the number of turns in the coil, the speed of rotation of the armature, and the angle of the coil relative to the magnetic field lines. The induced emf is directly proportional to the magnetic field strength, the number of turns in the coil, and the speed of rotation, while it is also affected by the angle of the coil in relation to the magnetic field. These factors collectively determine the magnitude of the induced emf in a DC machine.
What is the relationship between electrical frequency and magnetic field speed for an ac machine?
In an AC machine, the electrical frequency of the input power supply determines the rotational speed of the magnetic field, which interacts with the conductors in the machine to produce electrical power. The relationship between electrical frequency and magnetic field speed is directly proportional – an increase in electrical frequency results in a corresponding increase in the speed of the rotating magnetic field.
2 The air gap between stator and armature of an electric motor is kept as small as possible?
a. To get a stronger magnetic field b. to improve the air circulation c. To reach the higher speed of rotation d. To make the rotation easier
Does an alpha particle and beta particle has the same speed in a magnetic field?
Alpha particles with the same energy as beta particles have much less speed, magnetic field or no.
What is mean by slip power?
Slip power is the electrical power that is converted into mechanical power due to the slip between the stator magnetic field and rotor in an induction motor. It is the power required to maintain the rotor's rotation at a speed slightly lower than the synchronous speed of the stator field.
What factors affect the voltage produced by a dynamo?
The factors that affect the voltage produced by a dynamo include the speed of rotation, the strength of the magnetic field, the number of turns in the coil, and the size of the wire used in the coil. All these factors contribute to the amount of electromagnetic induction that occurs and thus influence the generated voltage.
What is meant by Slip of an induction motor?
Slip is referred to as the difference between the speed of the rotor and the speed of the rotating magnetic field in the stator of the induction motor. Speed of the rotor=n(1-s) Speed of the rotating magnetic field= f/p
