How much power is produced if a voltage of $3 V$ $3 V$ is applied to a circuit with a resistance of $54 Omega$ ?

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Answer 1 · 2018-06-09T13:54:46

$1/6\ "Watt"$

Power produced is given by

$"P" = "V"^2/"R"$

$color(white)("P") = ("3 volt")^2/"54 Ω"$

$color(white)("P") = 1/6\ "Watt"$

Answer 2 · 2018-06-09T15:20:12

Approximately $0.17$ watts.

Power is related through voltage and resistance by the equation:

$P=V^2/R$

where:

$V$ is the voltage in volts

$R$ is the resistance in ohms

So, we get:

$P=(3 \ "V")^2/(54 \ Omega)$

$=(9 \ "V"^2)/(54 \ Omega)$

$~~0.17 \ "W"$

How much power is produced if a voltage of 3 V3V3 V is applied to a circuit with a resistance of 54 Omega54 Omega?