Answer:
3 Amperes
Explanation:
This is an example of a parallel and series resistor. The first set of resistors are in parallel(the 6 and 3 ohms).
The total resistance of these two resistors can be solved through the following formula:
[tex]\frac{1}{R_{2} } +\frac{1}{R_{3} } =\frac{1}{R_{Equal} }[/tex]
*This is for any resistors in parallel
Plugging in the numbers, we find that an equivalent resistor has a resistance of 2 ohms. Adding this to the 4 ohms, we get that there a total of 6 ohms of resistance with the resistors in this circuit.
Using Ohms law:
I = V/R
I = 18 V/ 6 Ohms
I = 3 Amperes.
