Solving Voltage/Current in Resistor Circuits

[montoyas7940]

Good, so Req = 2+4+3+9 ohms = 18 ohms.

In a series circuit there is only one path for current to take so all of the current flows through all of the resistors. (Are you sure that you know what a series circuit looks like?)

Using Ohms law I=V/R you can calculate the current in your circuit. Use the voltage you were given and the resistance you calculated. What do you get?

 

[alksjadf]

8/18

If it's in parallel what's the formula for finding the total Resistance?

 

[lukas86]

if resistors are in parallel you want to know the formula for finding the total resistance...?

1/R_eq = 1/R1 + 1/R2 + ... + 1/Rn

 

[alksjadf]

Ok, thank you.