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Series Circuits - Engineering

Q1:

Two 1.5 V cells are connected series opposing across two 100  resistors in series. Total current flow is

A 15 mA

B 5 mA

C 2 mA

D 0 A

ANS:D - 0 A

Hi, which part of statement states that the two 1.5V cells are opposite to each other? Aren't the batteries connected in series?

So (+)(-)(+)(-)?