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Q.

In the given circuit, the AC source has ω = 100 rad/s . Considering the inductor and capacitor to be ideal, the correct choice(s) is (are)
 

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a

The current through the circuit, I is 0.3A

b

The current through the circuit, I is 0.32A

c

The voltage across 100Ω resistor = 102V

d

The voltage across 50Ω resistor = 10 V

answer is A, C.

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Detailed Solution

XL=ωL=100×0.5=50Ω
 

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XC=1ωC=1100×100×106=100Ω Z1=1002,I1=201002=152Vacross 100Ω=152×100=202×22=102
Phase difference between I1 and Vcosϕ1=R1Z1=1001002
ϕ1=π/4
I1 lead V
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Z2=502;I2=20502=252 Vrms across 50Ω=252×50=102
Phase difference between π2 and
V=cosϕ2=R2Z2=50502=12ϕ2=π/4I2lagVbyπ/4I=I1+I2Inet =I12+I22I=425×2+125×2=550=110
 

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= 0.316

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In the given circuit, the AC source has ω = 100 rad/s . Considering the inductor and capacitor to be ideal, the correct choice(s) is (are)