A charge of #24 C# passes through a circuit every #18 s#. If the circuit can generate #8 W# of power, what is the circuit's resistance?

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Answer 1 · 2016-05-11T17:50:21

#R=4.5" " Ohms#

#"charge: "q=24C#
#"time : "t=18s#

#"current: "I=q/t#

#I=24/18 =4/3A#

#"power :"P=I^2*R#

#R=P/I^2#

#R=8/(4/3)^2#

#R=8*9/16#

#R=4.5" " Ohms#