What is the name of the device that sense the current flowing

Ampermeter

Explanation:

An ampermeter is a device that allows measuring an electron flow through a wire.

His main operation principle is to generate a magnetic field on a coil, which then is converted to an electric potential or voltage to be compared with a voltage reference, producing there a measurable value.

There are 2 types of ampermeters one is the standard form, which is a clamp that surrounds a wire and measures without changing/touching the circuit. The other one uses to terminals and it's required to open the circuit and make the current flow go through the ampermeter.

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

i think it would be 5