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Q. Total power consumption for the given circuit is:-Physics Question Image

Solution:

$R _{1}=\frac{(110)^{2}}{100}=121 \,\Omega$
$R _{2}==363\, \Omega$
$R _{\text {total }}=121+363=484 \,\Omega$
total power $=\frac{(220)^{2}}{484}=100\, W$