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In a circuit, two resistors of 100 and 80 are connected in parallel. The parallel group is then connected in series with a 100 resistor. What is the total resistance of the circuit

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  1. 4 September, 03:12
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    When resistors are connected in parallel, we use the formula 1/Rt = 1/R1 + 1/R2 + 1/R3 + ...

    using this formula i got the answer=0.0225 of first two parallel resistors. Now the equivalent resister of parallel group is in series with the last one. so by using this formula Rt=R1+R2 ...

    I got the final answer 100.0225
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