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? asked in Science & MathematicsPhysics · 3 years ago

Consider three 15-Ohm resistors. a. What is their equivalent resistance if they are connected in series?

(b) What is their equivalent resistance if they are connected in parallel?

2 Answers

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  • electron1
    Lv 7
    3 years ago
    Favorite Answer

    When the resistors are in series, the equivalent resistance is the sum of the resistors.

    Req = 15 + 15 + 15 = 45 Ω

    When the resistors are in parallel, the invert of the equivalent resistance is equal to the sum of the inverts of the resistances.

    1/Req = 1/15 + 1/15 + 1/15 = 3/15

    Req = 5 Ω

  • Philomel
    Lv 7
    3 years ago

    15+15+15 = 45 ohms

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