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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsMedium2 minQB

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A $100Ω$ resistance, a $0.1 μ F$ capacitor and an inductor are connected in series across a $250 V$ supply at variable frequency. Calculate the value of inductance of inductor at which resonance will occur. Given that the resonant frequency is $60 Hz$ .

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Answer:

Solution:

$C = 0.1 μ F = 1 0^{- 7} F$

Resonant frequency $= 60 Hz$

$ω_{o} = \frac{1}{L C}$

$2 π f_{0} = \frac{1}{L C} \Rightarrow L = \frac{1}{4 π ^{2} f _{0}^{2} C}$

by putting values $L ≃ 70.3 Hz$ .

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Series AC Circuits

⏱ 2mℹ️ Source: QB

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