Very easy physics maths about current and other stuffs only one question please help me

Three identical resistors of resistance 3 ohms are connected in series in a circuit. What is the total voltage of the battery if the current in the circuit is 2A ?

Total voltage of the battery is 12 volts.

Explanation:

It is given that, we have three identical resistors of resistance 3 ohms are connected in series in a circuit. It is required to find the total voltage of the battery if the current in the circuit is 2 A.

Let is the equivalent resistance in series combination. The equivalent resistance is given by :

Let V is the total voltage of the battery. Ohm's law is given by :

So, the total voltage of the battery is 12 volts.

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.

current flows in a wire