If a series–parallel circuit has all 30-ohm resistors, what is the t – McqOptions

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1.	If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when R1 is in series with a parallel circuit consisting of R2 and R3?
A.	10 ohms
B.	20 ohms
C.	45 ohms
D.	90 ohms
Answer» D. 90 ohms

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