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An hour of CFL use consumes 10-2 kWh (kilowatt – hour), if each kilowatthour of electricity use is equivalent to 3.6 X 106 joules of energy, then find out the energy in joules used by the CFL in one hour

Respuesta :

calculista

Answer:

[tex]3.6*10^{4}\ joules[/tex]  or [tex]36,000\ joules[/tex]

Step-by-step explanation:

Let

x -----> the energy in joules used by the CFL in one hour

we know that

using proportion

[tex]\frac{1}{3.6*10^{6}}\frac{kWh}{joules} =\frac{10^{-2}}{x}\frac{kWh}{joules}\\ \\x=(3.6*10^{6})(10^{-2})\\ \\x=3.6*10^{4}\ joules[/tex]

or

[tex]36,000\ joules[/tex]

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