MHT CET 2022 Physics question

Physics Alternating Current MHT CET 2022

In series LCR circuit, the voltage across L, C and R is 50 V, 20 V and 40 V respectively. The a.c. voltage applied across the combination of LCR is

(A)10 V
(B)110 V
(C)70 V
(D)50 VCorrect

Answer: (D)

Solution

In a series LCR circuit and are in opposite phase, and both are out of phase with . So \sqrt{V_R^2 + (V_L - V_C)^2}\sqrt{40^2 + (50-20)^2}\sqrt{1600+900}$ =

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Question ID VK-094061