Which of the following statements is true about the electric field inside the bulb filament?
The field must be zero because the filament is made of metal.
The field must be zero because a current is flowing.
The field must be zero because any excess charges are on the surface of the filament. The field must be non-zero because the flowing current produces an electric
field.
© The field must be non-zero because no current will flow without an applied field.
The field must be zero for reasons not given above.
The field must be non-zero for reasons not given above
