Question

the ratio of the electric potential across a circuit element to the current flowing through that element is called:

a. current

b. energy

c. power

d. resistance

e. voltage

when electrons move in a copper wire:

a. resistance to the electron flow exists

b. ionization occurs

c. the condition is called electromagnetic force

d. the condititon is called electrostatics

e. they move down the middle of the wire

Answer 1

According to ohm's law V = iR

So V / i = R

So answer is resistance.

Resistance to the electron flow exist because copper wire has some resistivity.