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Equivalent Resistance and Current

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Two 70 ohm resistors are connected in parallel. This parallel arrangement is connected in series with a 30 ohm resistor. The combination is then placed across a 130 V battery.

What is the equivalent resistance of the parallel portion of the circuit? What single resistance could replace the three original resistors? What is the current delivered by the battery?

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Solution Summary

The expert analyzes equivalent resistance and current parallel arrangement. A combination of batteries places across a resistor are determined.

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For the two parallel resistors 70 ohms each, the equivalent resistance is

R1R2 / (R1 + R2) = 70 * ...

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