A galvanometer detects _ by showing needle movement in ___ . If the wires in this galvanometer are attached to the terminals of a battery, the compass needle will move and point _ to the wrapped coil of wire. If the wires to the terminal connections are switched, the needle will move and point in the _ direction. The movement of the needle can be altered and read incorrectly if there is a strong _ nearby.
1. an electric field
a magnetic field
a vacuum
2. an electric current
a magnetic field
a vacuum
3. parallel
perpendicular
at a 45- degree angle
4. same
opposite
magnetic north
5. magnet
wind
light source

1 - an electric current

               2 -  a magnetic field

               3-  perpendicular

               4 - opposite

               5 -  magnet

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

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