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Why is a dc motor not earthed?

A DC motor is typically not earthed to prevent ground loops and minimize interference with the motor's operation. Earthing could create unwanted return paths for current, potentially leading to erratic performance or damage. Additionally, many DC motors are designed with insulated windings, which means they do not require a ground connection for safe operation. Instead, they rely on proper insulation and design to ensure safety and functionality.


How is transformer saturation avoided in class B push pull amplifier operation?

In class B amplifier no DC biasing required, thus lack of of DC current in inpunt and load, saturation of core avoided


What is collector bypass capacitor?

A: It is not a bypass it is a negative feedback to effect the input voltage, Bias is when a DC voltage is applied to insure proper operation


Does DC generator produce a smooth DC voltage output?

A DC generator typically produces a pulsating output voltage rather than a perfectly smooth DC voltage. This is due to the nature of its operation, where the generated voltage fluctuates with the rotation of the armature within the magnetic field. To achieve a smoother DC output, additional components such as filters or voltage regulators are often used to reduce the ripple and stabilize the voltage.


How do you fix hunting in a dc motor?

Hunting in a DC motor, characterized by oscillations around a set point, can be mitigated by tuning the control system. Implementing a PID controller with appropriate gains can help stabilize the motor's response. Additionally, incorporating damping techniques, such as adding a low-pass filter to the feedback loop or using mechanical dampers, can reduce oscillations. Ensuring proper alignment and minimizing external disturbances can also contribute to smoother operation.