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What is emf induced in a motor's coil that tends to reduce the current in the coil of the motor?
Wiki User
∙ 12y ago
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'.
Wiki User
∙ 12y ago
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What component of a motor changes the induced AC voltage into a pulsating DC?
The commutator is the moving part of the electrical switch in motors that reverses the current direction between the rotor and the external circuit. This is applicable in electrical motors and electrical generators.
What type of current is used in an electirc motor?
Well that depends on the type of motor. DC motors use direct current DC and induction motors use alternation current AC.
What is a disadvantages DOL or direct online starter?
it can not be use for heavy duty motors as well as it requires a high starting current.
Can you use AC in motor?
AC current is used in motors.
How many percent will be the starting current for motor?
Motor starting current is typically 5-7 times the rated current of the motor. (For three phase induction motors)
Slip power in a induction motor?
slip power is a power which is develop by the induced voltage and current in an induction motor
What is locked rotor in three phase induction motor?
A motors locked rotor current is the same as the motors starting current. This is the point where the voltage is applied to a non rotating motor, time cycle zero. Because the motor is not rotation and generating a back EMF to oppose the inrush current, the current will go as high as 6 times the running current of the motor.
Why we connect high resistance in series to a motor?
Reduce current - reduce power.
What are brushes with reference to DC motors?
Bushes, with reference to DC motors is a brushed DC motor which is a motor that designed to run from a direct current (DC) power source. This type of motor is an internally committed electric motor.
What is meant by DC motor?
Only a DC motor uses direct current, and the reason is that it is the only supply available. There are also plenty of AC motors used when there is an AC supply. DC tends to be used for low-power devices like fans in electronic equipment.
Why a ac motor is called as a induction motor?
as it works on induced voltage on rotor according to faradays law of electromagnetic inductio ac motors called as induction motor The AC motors works in the same principle as that of a Transformer. The AC supply is given to the stator and a rotating flux is set up in it. According to Faraday's Law, a voltage is induced in the rotor conductors as these conductors are in closed circuit, a current starts flowing through them as a result a magnetic flux is created around the conductors. Due to the interaction of the fluxes a torque is setup and the rotor rotates.
Does Adding a capacitor in parallel with an inductive motor reduce the Actual KWH measure for that motor?
Yes,We know that when the motor will be put on. At that time terminal voltage is reducing and also current is increasing. A capacitor is connected parallel with motor that time current will be reduce and also voltage will be increase. So reduce the actual KWH
