A scientist runs an electric current along a wire. A magnetic compass is placed near the wire. The scientist observes that whenever the current is
turned on, the compass needle moves. Why does the compass needle
move?
O The current creates an electric field around the wire
O The current creates a magnetic field around the wire
O The current adds electric charge to the compass needle
O The current increases the force of gravity on the compass needle

i don't know, you need to give me some answers.

explanation:

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

more than, less

less than, more