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 ?

The total voltage of the circuit is 18 volts.

Explanation:

We have, three identical resistors of resistance 3 ohms are connected in series in a circuit.

For a series combination, the equivalent resistance is given by the sum of individual resistances i.e.

Let V is the voltage of the battery if the current in the circuit is 2 A. So,

So, the total voltage of the circuit is 18 volts.

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.