Four 100-ohm resistors connected in parallel produce what total load?

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Multiple Choice

Four 100-ohm resistors connected in parallel produce what total load?

Explanation:
When resistors are in parallel, their conductances add up, and the total resistance is the reciprocal of that sum. For four identical resistors of 100 ohms, each conductance is 1/100, so the total conductance is 4/100 = 0.04. The total resistance is 1 / 0.04 = 25 ohms. (Equivalently, for identical resistors in parallel, you can divide the value by the number of resistors: 100 ÷ 4 = 25.) The total load is 25 ohms.

When resistors are in parallel, their conductances add up, and the total resistance is the reciprocal of that sum. For four identical resistors of 100 ohms, each conductance is 1/100, so the total conductance is 4/100 = 0.04. The total resistance is 1 / 0.04 = 25 ohms. (Equivalently, for identical resistors in parallel, you can divide the value by the number of resistors: 100 ÷ 4 = 25.) The total load is 25 ohms.

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