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Question
What is the approximate value of the power factor of a choke coil with, R = 10 Ω and reactance = 100 Ω?
Numerical
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Solution
Power factor = `R/(sqrt(R^2 + X_L^2)) ≃ R/(X_L) ("for" X_L^2 ≫ R^2)`
= `10/100`
= 0.1
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Choke Coil
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