In a simple L-R circuit with A.C . source the potential difference at any instant across induct

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7.Alternating Current

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In a simple $L-R$ circuit with $A.C$. source the potential difference at any instant across inductor and resistance are $V_L$ and $V_R$ respectively and $A.C.$ souree has potential difference $V_{Ac}$ at the same instant. Then

A

$V_L^2 + V_R^2 = V_{AC}^2$

B

${V_L} + {V_R} = {V_{AC}}$

C

$V_L^2 - V_R^2 = V_{AC}^2$

D

$V_L^3 + V_R^3 = V_{AC}^3$

Solution

Instantaneous sum of potential difference
$V_R = V_L + V_C$

Standard 12

Physics

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