Question

Find equivalent resistance between A and B in the circuit

Answer 1

Answer:

Here is your answer

Explanation:

R1, R2, R3 are in series

Therefore, R' = R1+R2+R3

                      = 10+10+10

                      = 30Ω

Now R' is parallel to R4

Therefore, 1/R"= 1/R'  +  1/R"

                      = 1/30 + 1/10

                      = 4/30

                  R"= 30/4

                      = 7.5Ω

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