Answer:
The power consumed by air filter is 10.8W
Explanation:
Voltage V=120 V
Current I=2.0×10⁻³A
Turn ration of transformer=45:1
To find
The power consumed by the air filter
Solution
The power used by filter is
[tex]P=I_{p}V_{p}\\Solving \\\frac{I_{s}}{I_{p}}=\frac{N_{p}}{N_{s}}\\ shows\\I_{p}=I_{s}(\frac{N_{s}}{N_{p}})[/tex]
Substituting this result for power
[tex]P=I_{p}V_{p}\\P=I_{s}(\frac{N_{s}}{N_{p}})V_{p}\\P=(2.0*10^{-3}A)(\frac{45}{1} )(120V)\\P=10.8W[/tex]
The power consumed by air filter is 10.8W
