A 10.0 Ω resistor is in parallel with a 20.0 Ω resistor and supplied by a 9.00 V battery. What is the total current passing through the circuit?

Question

michele_laino · Answer

it is simple the toatl resistance is:
R=20+10=30 Ohm
so the requested current is:
I= V/R= 9/30=...Amperes

michele_laino · Answer

total*

anonymous · Answer

The answer choices are 
       0.38 A

       0.75 A

       1.35 A

       6.00 A
So do I go with 0.38 A

michele_laino · Answer

sorry I have made an error

michele_laino · Answer

the total resistance is:
$$\Large  R = \frac{1}{{\frac{1}{{10}} + \frac{1}{{20}}}} = ...Ohms$$

michele_laino · Answer

what is R?

michele_laino · Answer

hint:
R=6.67 Ohms
so the requested current, is:
I=V/R= 9/6.67=...Amperes

anonymous · Answer

I got that answer but it doesn't match any answer choice.

michele_laino · Answer

what is your answer?

anonymous · Answer

oh I messed up I forgot to divide 9/6.67 
I am so dumb the answer is 1.35A

michele_laino · Answer

the answer is 1.35 Amperes, good job!

anonymous · Answer

Thank you for your help. I should have been able to do this on my own. I just missed a tiny detail when I was trying to solve it myself.

michele_laino · Answer

thanks! :)