The current supplied to an air conditioner unit is 2.54 amps. the air conditioner is wired using a 10-gauge (diameter 2.588 mm) wire. the charge density is n = 8.48 ✕ 1028 electrons/m3.find the following magnitudes.(a) current density (in a/)the drift velocity (in m/s)?

482853.39714 A/m²

Explanation:

I = Current = 2.54 A

d = Diameter = 2.588 mm

r = Radius =

A = Area =

n = Charge density =

q = Charge of electron =

Current density

The current density is

Drift velocity

The drift velocity magnitude is

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.