Question

a circuit consisting of a coil resistance 10ohm and inductance 0.2H in series with capacitor of 10 is connected to a variable frequency supply which has a constant voltage of 30v calculate the resonant frequency and current in Circuit at resonance​

Answer 1

Answer:

. Resonance frequency f=2πLC1

f=2π5×5×10−61=10π1000=10π100=31.8 Hz

ω=200 rad/s

2. Current at resonance. Ir=R220=40220=5.5 A

3. XL=ωL=200×5=1000 Ω

Explanation:

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