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In an LCR series a.c. circuit, the voltage across each of the components $\mathrm{L}, \mathrm{C}$ and $\mathrm{R}$ is $60 \mathrm{~V}$. The voltage across the $\mathrm{LC}$ combination is
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$\text { zero }$
The voltage across $L$ and $C$ has phase difference of $\pi$ $\mathrm{X}=\mathrm{X}_{\mathrm{L}}-\mathrm{X}_{\mathrm{c}}=60-60=0$
Hence the resultant voltage across the combination is zero.
Hence the resultant voltage across the combination is zero.
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