What to do if an Electrical appliance omits smoke what to do first?

If an electrical appliance emits smoke, immediately unplug it from the power source to prevent further risk of fire or electric shock. Avoid using water to extinguish any flames, as this can be dangerous; instead, use a fire extinguisher rated for electrical fires if necessary. Ensure the area is well-ventilated, and do not attempt to use the appliance again until it has been inspected and repaired by a qualified technician. If the smoke is substantial or a fire develops, evacuate the area and call emergency services.