How much power is produced if a voltage of #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"#