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  4. In given LCR circuit, the voltage across the terminals of a resistance R and current through ammeter will bef

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Q. In given LCR circuit, the voltage across the terminals of a resistance R and current through ammeter will be$f$Physics Question Image

Solution:

$V=\sqrt{V_{R}^{2}+\left(V_{L}-V_{C}\right)^{2}}$
$\Rightarrow V=V_{R}=200 \,V$
$\Rightarrow I=\frac{V}{Z}=\frac{V}{\sqrt{R^{2}+\left(X_{L}-X_{C}\right)^{2}}}$
$=\frac{200}{40}=5\, A$