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Questions  

In a series circuit R=300Ω,L=0.4H,C=8μF  and ω=1250rad/sec . The impedance of the circuit is

a
1300 Ω
b
900 Ω
c
500 Ω
d
400 Ω

detailed solution

Correct option is C

XL=ωL=500Ω XC=1ωC=100Ω Z=R2+(Lω−1Cω)2=(300)2+(400)2=500Ω .

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