Question

Find Eqivalent Resistance in the circuit ...slove fast..​

Answer 1

Answer: 15/8 ohm

Explanation:

Rs(series) = R1 + R2 + R3 ......+Rn

1/Rp(parallel) = 1/R1 + 1/R2 + 1/R3 ..... + 1/Rn

3 ohm resistors are in series so their equivalent resistance is

3 + 3 + 3 +3 = 12 ohm

So now 4 ohm , 5 ohm and 12 ohm resistors are in parallel.

Using formula for parallel combination -

1/Rp = 1/4 + 1/5 + 1/12

1/Rp = (15 + 12 + 5)/60  = 32/60

Rp = 60/32 = 15/8 ohm

The equivalent resistance of the circuit is 15/8 ohm.

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