To an ac power supply of 220 V at 50 Hz , a resistor of 20Ω , a capacitor of reactance 25Ω and an inductor of reactance 45Ω are connected is series. The corresponding current in the circuit and the ph

Question

To an ac power supply of 220 V at 50 Hz , a resistor of 20Ω , a capacitor of reactance 25Ω and an inductor of reactance 45Ω are connected is series. The corresponding current in the circuit and the phase angle between the current and the voltage is, respectively-NEET 2025

TestHub · Accepted Answer

​ X C ​ = 25Ω X L ​ = 45Ω Z = R 2 + ( X L ​ − X C ​ ) 2 ​ Z = 2 0 2 + ( 45 − 25 ) 2 ​ Z = 20 2 ​ ​ ​ I r m s ​ = Z V r m s ​ ​ = 20 2 ​ 220 ​ = 2 ​ 11 ​ = 7.8 A tan ϕ = R X L ​ − X C ​ ​ = 20 45 − 25 ​ = 20 20 ​ = 1 ϕ = 4 5 ∘ ​

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