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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsHard2 minPYQ_2012

PhysicsHardsingle choice

A resistor $R$ , an inductor $L$ and capacitor $C$ are connected in series to an oscillator of frequency n. If the resonant frequency is $n_{r}$ , then the current lags behind voltage, when

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Solution:

When reactance of inductance is mroe than the reactance of cndenser, the current will lag behind the voltage. Thus $ω L < \frac{1}{ω c}$ or $ω > \frac{1}{L C}$ or $n > \frac{1}{2 π LC}$ or $n > n_{r}$ $n_{T} =$ resonant frequency

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

⏱ 2mℹ️ Source: PYQ_2012

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