A circuit containing six resistors is connected to a 120 V power supply as shown in the figure below.
a) What is the equivalent resistance of this circuit?
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Answer:
The equivalent resistance is 1255/39Ω
Explanation:
the equivalent resistance in series is R1+R2 20+5=25=Ω
the equivalent resistance in parallel 1/R3+1/R4+1/R5+1/R6 1/40+1/20+1/70+1/20=39/280
equivalent resistance in parallel is 280/39
equivalent resistance of whole resistor is 280/39+25= 280+975/39= 1255/39Ω
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