0
If both the field and armature currents in a motor are reversed, the direction of the magnetic field and the armature's rotation will also reverse, resulting in no change in the overall motion of the motor. The torque produced will still act in the same direction as before, maintaining the motor's operational characteristics. However, this may cause issues in certain applications where the direction of rotation is critical. Overall, the motor will continue to function but with a reversed magnetic orientation.
What else can I help you with?
What would happen if the direction of the current through a hall probe is reversed?
The idea is that the magnetic field of the device reacts with the external magnetic field. If the current is reversed, the magnetic field would also be reversed, and the reading would be the opposite.
What will happen if the armature rheostat is zero and field circuit resistance is kept high in a dc motor?
If the armature rheostat is set to zero and the field circuit resistance is kept high in a DC motor, the armature will receive maximum current, leading to a high armature current. However, with a high field circuit resistance, the field current will be low, resulting in a weak magnetic field. This imbalance can cause the motor to run at a very high speed, potentially leading to instability or damage due to excessive armature current and insufficient torque production. Overall, the motor may operate inefficiently and could risk mechanical failure.
How can the direction of rotation of a DC shunt motor be reversed?
DC shunt motor can be reversed by changing the polarity of either the armature coil or the field coil.
What is Comparison of armature controlled and field controlled DC servo motor?
Difference between field controlled and armature controlled is that field control is open loop and armature current is closed loop.
How do you calculate armature current in a shunt generator?
To calculate the armature current in a shunt generator, you first need to determine the load current (I_load) and the shunt field current (I_shunt). The armature current (I_a) can then be calculated using the formula: ( I_a = I_{load} + I_{shunt} ). The shunt field current can be found using the field resistance and the terminal voltage. Once you have both currents, simply add them to find the total armature current.
Why direction of rotation is not reversed when both field and armature terminals are reversed?
The direction of the force that drives the machine is determined by the relative directions of the field and the armature current. By reversing the direction of both field and the armature current, the direction of the resulting force stays the same; you have to reverse the direction of one or the other; not both! Prove it for yourself, by applying Fleming's Left-Hand Rule (for conventional current flow); reverse the direction of both your first finger (field) and your second finger (armature current), and you thumb (direction of motion) will end up pointing in the same direction!
Why direction of rotation is not reversed when both field and armature terminal are reversed?
The direction of the force that drives the machine is determined by the relative directions of the field and the armature current. By reversing the direction of both field and the armature current, the direction of the resulting force stays the same; you have to reverse the direction of one or the other; not both! Prove it for yourself, by applying Fleming's Left-Hand Rule (for conventional current flow); reverse the direction of both your first finger (field) and your second finger (armature current), and you thumb (direction of motion) will end up pointing in the same direction!
What would happen if the direction of the current through a hall probe is reversed?
The idea is that the magnetic field of the device reacts with the external magnetic field. If the current is reversed, the magnetic field would also be reversed, and the reading would be the opposite.
What happen to an electromagnet's field if the direction of the current ic reversed?
If the direction of the current in an electromagnet is reversed, the direction of the magnetic field surrounding the electromagnet will also reverse. This change in direction will affect the polarity of the electromagnet, causing its north and south poles to switch.
What will happen if the armature rheostat is zero and field circuit resistance is kept high in a dc motor?
If the armature rheostat is set to zero and the field circuit resistance is kept high in a DC motor, the armature will receive maximum current, leading to a high armature current. However, with a high field circuit resistance, the field current will be low, resulting in a weak magnetic field. This imbalance can cause the motor to run at a very high speed, potentially leading to instability or damage due to excessive armature current and insufficient torque production. Overall, the motor may operate inefficiently and could risk mechanical failure.
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
How can the direction of rotation of a DC shunt motor be reversed?
DC shunt motor can be reversed by changing the polarity of either the armature coil or the field coil.
What is Comparison of armature controlled and field controlled DC servo motor?
Difference between field controlled and armature controlled is that field control is open loop and armature current is closed loop.
What is mean by armature reaction?
armature reaction means when load is added to the armature then current is passed through armature conductors then in armature creates flux. It is demagnetize and cross magnetize the main field flux. in other ward it is effect of armature field on main field.
How do you calculate armature current in a shunt generator?
To calculate the armature current in a shunt generator, you first need to determine the load current (I_load) and the shunt field current (I_shunt). The armature current (I_a) can then be calculated using the formula: ( I_a = I_{load} + I_{shunt} ). The shunt field current can be found using the field resistance and the terminal voltage. Once you have both currents, simply add them to find the total armature current.
What is shunt current and a armature current?
The terms 'shunt' and 'armature' apply to a particular type of d.c. motor, in which the field windings are connected in parallel with the armature windings. 'Shunt' is an archaic term for 'parallel', so the term 'shunt', in this context, means that the field winding is connected in parallel with the armature winding. The terms 'shunt current' and 'armature current', then describe the currents flowing in the shunt winding and armature winding, respectively.
When a current flows through an electric bell what will happen to the armature?
When a current flows through an electric bell, it creates a magnetic field that causes the armature, attached to a spring, to be attracted towards the electromagnet. This movement causes the armature to strike the bell, producing a ringing sound.
