일반물리학 2 — Current and Resistance: Problem 18

18 In Fig. 26-20, a battery of potential difference \(V = 12\text{ V}\) is connected to a resistive strip of resistance \(R = 4.0\text{ }\Omega\). When an electron moves through the strip from one end to the other, (a) in which direction in the figure does the electron move, (b) how much work is done on the electron by the electric field in the strip, and (c) how much energy is transferred to the thermal energy of the strip by the electron?