Question 9 (1 point) The equivalent resistance of the following circuit is 6.72 ohm. R1-2.92 ohm....

Question

Question

Answer 1

Answer #1

Here R2 and R3 are in series, so their equivalent R23 = R2+R3 = 2*2.92+3*2.92 = 5*2.92 = 14.6 ohm

Now equivalent resistance of whole circuit , Req = R1 + R4*R23/[R4+R23]

6.72 = 2.92 + R4*14.6/(R4 +14.6)

R4 = 5.137 ohm answer

Answer 2

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