In this circuit, which resistor will have the greatest amount of current flowing across it?

http://twitpic.com/e3nrhn

1) Current will pass equally through each resistor.

2) R1

3) R2

4) R3

Question

In this circuit, which resistor will have the greatest amount of current flowing across it?

http://twitpic.com/e3nrhn 

      1)  Current will pass equally through each resistor.

      2)  R1

      3)   R2

      4)    R3

anonymous · Answer

Current is given by:$$I=\frac{ V }{R}$$where I is current; V is voltage; and R is resistance.  So, in your circuit voltage is constant.  Look at the equation I gave you and think about what happens to I when R is small compared to when R is large.  You should be able to find your answer without calculating anything.

anonymous · Answer

so the answer is option 2, R2 ?

anonymous · Answer

not r2 i meant R1

anonymous · Answer

Yes, it's resistor #1, the 2 ohm resistor.

anonymous · Answer

thank you so much for your help!

anonymous · Answer

No problem.  You're welcome.