Final answer:
In a series circuit, the total resistance is equal to the sum of the individual resistances. To calculate the total current, we can use Ohm's law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the total current through the circuit is 0.15 A (or 150 mA).
Step-by-step explanation:
In a series circuit, the total resistance is equal to the sum of the individual resistances. In this case, there are four light bulbs, each with a resistance of 10 ohms, connected in series. So, the total resistance is 4 x 10 = 40 ohms.
To calculate the total current through the circuit, we can use Ohm's law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage is 6.0 V and the resistance is 40 ohms, so the total current is 6.0 V / 40 ohms = 0.15 A (or 150 mA).
Therefore, the total current through the circuit is 0.15 A (or 150 mA).