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## Homework Statement

The circuit is shown as above.

If ε = 3 volt and each resistor has 2 ohm resistance, then what's the potential difference between point B and point D ?

A. 4

B. 3

C. 2

D. 1

E. 0

## Homework Equations

V = I R

R series = R1 + R2 + ..

1/ R parallel = 1/R1 + 1/R2 + ...

## The Attempt at a Solution

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The circuit is very weird. I don't even know how to start.