A parallel combination of 3ohms and 4ohms resistor is connected in series with a resistor of 4ohms and a battery of negligible resistance. C

Question

A parallel combination of 3ohms and 4ohms resistor is connected in series with a resistor of 4ohms and a battery of negligible resistance. Calculate the effective resistance in the circuit

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Khải Quang 6 months 2021-07-28T03:31:48+00:00 1 Answers 1 views 0

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    2021-07-28T03:33:16+00:00

    Answer:

    Explanation:

    Equivalent resistance of parallel combination of two resistors of 3 ohms and 4 ohms .

    R₁ = 3 x 4 / ( 3 + 4 )

    = 12 / 7 = 1.7 ohms .

    This equivalent resistance is connected with 4 ohms in series

    Total resistance = 1.7 ohms + 4 ohms

    = 5.7 ohms.

    Hence effective resistance of the circuit = 5.7 ohms .

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