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What are the applications of a shaded pole motor?
When the coil in the relay needs to run off an AC signal rather than DC. The shaded pole keeps the relay from "chattering" every time the AC current crosses 0v on the sine wave.
Why does a coil need a little shove before making a dc motor?
A coil in a DC motor needs a little shove, or an initial push, to overcome inertia and start moving. Once the coil begins to rotate, it generates a magnetic field that interacts with the motor's permanent magnets, allowing it to continue spinning. This initial push helps to overcome static friction and ensures that the motor engages and operates smoothly. Without this initial force, the motor may not start due to the resistance to motion.
Why is there a difference in current in a coil when you apply dc voltage and then AC voltage to it?
A coil has both resistance and inductance. When you apply a d.c. voltage, the opposition to current is the resistance of the coil. When you apply an a.c. voltage, the opposition to current is impedance -the vector-sum of the coil's resistance and its inductive reactance. Inductive reactance is proportional to the inductance of the coil and the frequency of the supply.
Why induction motor coil spoil?
coil too many rewind
Can a 12vac coil be operated by 24vdc?
no, in an ac circuit the coil provides impedance but the DC coil needs some resistance to limit the current
A vacuum cleaner is plugged into a 120.0-V socket and uses 3.0 A of current in normal operation when the back emf generated by the electric motor is 72.0 V Find the coil resistance of the motor?
To find the coil resistance of the motor, we can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I). In this case, the voltage drop across the coil resistance is the difference between the supply voltage and the back EMF: 120.0 V - 72.0 V = 48.0 V. So, the resistance of the coil is 48.0 V / 3.0 A = 16.0 ohms.
What is emf induced in a motor's coil that tends to reduce the current in the coil of the motor?
BACK emf induced in a motor's coil that tends to reduce the current in the coil of the motor. The answer should be 'back'.
What are the applications of a shaded pole motor?
When the coil in the relay needs to run off an AC signal rather than DC. The shaded pole keeps the relay from "chattering" every time the AC current crosses 0v on the sine wave.
Which of the coil of the wattmeter has high resistance?
The voltage (or 'potential') coil has the higher resistance, because it is connected in parallel with the load.
When Replacing 12v coil on 1998 Kubota engine wg750 could it have resistance type external wiring from coil to distributor or is resistance internal in coil?
A engine coil has a high internal resistance, the needing of a suplementar resistance may be advised to you by a car electrician, who works with such brand and model of your car.
What are the advantages and disadvantages of using a shaded pole motor?
Advantages, Disadvantages and ApplicationsThe various advantages of Shaded pole motors includes Very cheap and reliableEasy to constructExtremely rugged in natureDisadvantages includesLow efficiencyLow starting torqueSince the shading coil is made of copper, the copper loss is high.See the related link for further information.
On an 86 Toyota truck what should the pickup coil resistance be?
Distributor pickup coil resistance 140-180 ohms.
Why does a coil need a little shove before making a dc motor?
A coil in a DC motor needs a little shove, or an initial push, to overcome inertia and start moving. Once the coil begins to rotate, it generates a magnetic field that interacts with the motor's permanent magnets, allowing it to continue spinning. This initial push helps to overcome static friction and ensures that the motor engages and operates smoothly. Without this initial force, the motor may not start due to the resistance to motion.
How a slip ring motor work?
The stator coil is exactly the same as a 3 phase induction motor. The difference being the rotar which has 3 phase wiring in star point or delta connection and also has the sliprings connected to the wiring of the rotor. Brushes are use for the contact between the surpply and the rotor. By controling the current we can control the torgue and speed of the motor. This is done with resistance. Resistance can be greated by means of a resistance bank, liquid resistance or a variable resistance. The basic Idee is: The higher the resistance, low starting current, high torque, high % slip. Motor runs slowlyLow resistance , Higher starting current, lower torgue, lower % slip Motor runs faster.Thus by varing the rotor resistance the motor can be adapted for a spesific load.The motor Are mainly used for Overhead cranes, Elevators in buldings, Pumps under pressure and large fans
Why won't my shaded pole motor run?
A shaded pole AC motor has a part of it's stator short circuited by a copper ring. When the flux in the main part of the stator increases, the flux through the copper ring with have a small delay, since it wants to keep its flux constant. Therefor you get a small rotational component to the field distribution, which makes the rotor turn.
What is 99 silhouette 4.3 firing order on coil?
At 6500-11500 ohms, the resistance on the ignition coil is okay. If the resistance exceeds 11500 or below 6500, the coil requires replacement.
Why is there a difference in current in a coil when you apply dc voltage and then AC voltage to it?
A coil has both resistance and inductance. When you apply a d.c. voltage, the opposition to current is the resistance of the coil. When you apply an a.c. voltage, the opposition to current is impedance -the vector-sum of the coil's resistance and its inductive reactance. Inductive reactance is proportional to the inductance of the coil and the frequency of the supply.
