- #1

subhradeep mahata

- 120

- 13

## Homework Statement

Seven equal resistors, each of resistance 2Ω are connected with a battery of 3V in a circuit shown. If i

_{1}is the current when the switch S is open and i

_{2}is the current when switch S is closed, find the value of

*i*

_{1}/i_{2}.## Homework Equations

1)Equivalent resistance formula

2)Ohm's law

## The Attempt at a Solution

If the switch is closed, it is very obvious that equivalent resistance=6/5Ω

Then, current i

_{2}=5/2 A

But the confusion occurs when we "open" the switch. My intuition says that no current should flow through ACEGHFDB. So, the required current = 3/2 A. Hence, required ratio=3:5.

But my book says that the answer is 5:6.

Please help me find out where I went wrong. Thanks.