Physics question, require assistance.
determine the type of energy transfer when the motor of a fan is turned on.
a electrical energy in converted to mechanical energy
b electrical energy is converted to potential energy
c electrical energy is converted to heat and mechanical energy
d electrical energy is converted to wind energy
what evidence for the transformation of energy does the running fan produce? select all that apply.
a the blades of the fan are spinning.
b light is produced.
c an air flow is felt.
d sparks can be seen.
e the fan warms up.
what is true of the efficiency of this motor?
a it is more than 100% efficient.
b it is 100% efficient.
c it is less than 100% efficient.
d none of the above

the inner core.

good luck: )

klicker

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia