Anonymous asked in Consumer ElectronicsOther - Electronics · 4 weeks ago

20 ohm resistor in series with a 10 ohm resistor, each are 1/4 watt power, does that equal 5 watts of power?

the guy said its 5 watts of power

i doubt it 

how much power does the two have together?

3 Answers

  • khalil
    Lv 7
    4 weeks ago

    no .... it is a 30 ohms ---0.375 watt

    max current for 10 ohm →0.158A

    max current for 20 ohm →0.112 A

    in series connection acceptable answer is 0.112A so for a 30 ohms → 0375 watt

  • 4 weeks ago

    SAME AS A  1/4 W  30 OHM RESISTOR.

  • 4 weeks ago

    If uses in series so the current through each is the same, the 20 Ohm resistor will be dissipating 250mW at around 112mA.

    At that current, the 10 ohm resistor will only be dissipating 125mW

    The that's the maximum possible power without exceeding the resistor ratings:

    375mW total.

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