Use the drop-down menus to complete the passage.
A galvanometer detects
by
showing needle movement in
f
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 current  

              2 -  a magnetic field  

              3-  perpendicular  

              4 - opposite  

              5 -  magnet

Explanation:

got it right on edg.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.