EXPLANATION: Fleming’s left hand is used to find the direction of force or motion acting on the moving coil in the DC motor.
Which of the following rule is used to determine the direction of rotation of DC motor Examveda?
Solution(By Examveda Team)
Fleming’s right-hand rule (for generators) shows the direction of induced current when a conductor attached to a circuit moves in a magnetic field. It can be used to determine the direction of current in a generator’s windings.
Which of the following rule is used to determine the direction of rotation of DC motor * Mcq?
Which of the following rule is used to determine the direction of rotation of D.C motor? Answer 4. Fleming’s left-hand rule.
Which of the following rule is used to determine the direction of rotation of coil?
Maxwell right hand grip rule.
How can the direction of rotation of a DC motor be determined and explain how the speed of the DC motor can be changed?
So in order to change the direction of rotation, we can simply reverse the voltage, causing the current to flow in the opposite direction, changing the force by 180 degrees and the motor to be driven ‘backwards’.
Which of the following rule is used to determine the direction?
The correct answer is Fleming’s right-hand rule.
Which of the following rule is used to determine the direction in DC generator?
DC Generators use Fleming’s right-hand rule to find the direction, not use Fleming’s left-hand rule.
Which rule is used to know the direction of the motor?
Fleming’s left hand rule is an accurate and simple way to find the direction of force exerted on a conductor placed in an electric motor when the magnetic field direction and the current direction are known.
Which rule is used to determine the direction of induced emf in DC generator?
right hand rule
The direction of induced emf is determined by right hand rule. As per the the rule, if the thumb is pointed in the direction of motion of the conductor and the first finger is pointed in the direction of the magnetic field (north to south), then the second finger represents the direction of the induced current.
Which of the following rule is used to determine the direction of rotation of the motor axle?
The direction of such force i.e. the direction of rotation of a motor can be determined by Fleming’s left hand. So Fleming’s right hand rule is to determine direction of induced e.m.f. i.e. for generating action while Fleming’s left hand rule is to determine direction of force experienced i.e. for motoring action.
Which rule determines the direction of rotation of armature in DC motor?
Answer: The direction of rotation of a DC motor depends on the direction of the magnetic field and the direction of current flow in the armature. If either the direction of the field or the direction of current flow through the armature is reversed, the rotation of the motor will reverse.
Which rule is used in motor?
Distinction between the right-hand and left-hand rule
Fleming’s left-hand rule is used for electric motors, while Fleming’s right-hand rule is used for electric generators.
Which rule determines the direction of rotation of a coil in an electric motor?
Answer: Fleming’s left hand rule.
How do you determine the direction of a DC motor?
You can find out the direction of rotation of a DC motor by facing its commutator end, which usually is the back or rear of the motor, and noting the lead designation.
How does a DC motor change direction?
Your DC motor can be configured to turn in either direction by simply inverting the polarity of the applied voltage. The change in the flow of current switches the direction of the spinning force, causing the motor’s shaft to begin turning in the opposite direction.
How can the direction of rotation of a DC motor be reversed?
The direction of rotation of DC series motor may be reversed by changing the polarity of either field or the armature winding.The direction of the torque and the speed can be reversed by changing the direction of either the field current or armature current by changing the polarity of the DC voltage.
Which rule is used to determine the direction of the current produced in electric generator?
Fleming’s right-hand rule (for generators) shows the direction of induced current when a conductor attached to a circuit moves in a magnetic field. It can be used to determine the direction of current in a generator’s windings.
Which of the following is used to determine the direction to induced current in a generator?
Fleming’s right hand rule is used to determine the direction of induced current in a generator.
What is Fleming’s left hand rule?
Fleming’s left-hand rule states that:
When a current-carrying conductor is placed in an external magnetic field, the conductor experiences a force perpendicular to both the field and to the direction of the current flow. It was invented by John Ambrose Fleming.
Which rule determine the direction of back EMF in DC motor?
The Fleming right-hand rule determines the direction of the induced EMF.
On what principle an electric motor works define the rule used to identify the direction of force on the conductor in an electric motor?
The principle of an electric motor is used on the fact that current carrying conductor produces a magnetic field around is current carrying conductor placed perpendicular lo magnetic field experiences a force. Flemings left hand rule used is to determine direction.
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