The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.