Final answer:
In a parallel circuit with three 6-ohms resistors across a 12-volt battery, the total current (It) value in the circuit is 6 amps.
Step-by-step explanation:
In a parallel circuit, each resistor gets the full voltage supplied by the battery. So, in this circuit, each of the three 6-ohm resistors will have a voltage of 12 volts across them.
To find the total current (It) in the circuit, we can use Ohm's law. Ohm's law states that current (I) is equal to voltage (V) divided by resistance (R). So, for each resistor in the circuit, the current will be 12 volts divided by 6 ohms, which is equal to 2 amps.
Since the three resistors are connected in parallel, the total current in the circuit will be the sum of the individual currents. So, the total current (It) in the circuit will be 2 amps + 2 amps + 2 amps, which is equal to 6 amps.