In an electric circuit in which 3.0 V–0.25 A Bulb 1(R0 = 1.8 Ω) and 3.0 V–0.25 A Bulb 2(R0 = 1.8 Ω) are connected in series, the supply voltage, current flowing through the bulbs, and total current in a simple electric circuit when the total current approaches the rated current of the bulbs.