For the given figures, choose the correct options:

For the circuit(a), $Z = R = 40Ω$. Hence,

${I}_{rms} = \dfrac{220}{40} = 5 . 5A$

${X}_{L} = 2\pifL = 2\pi \times 50 \times 50 \times {10}^{- 3} = 15 . 7Ω$ and ${X}_{C} = \dfrac{1}{2\pifC} = \dfrac{1}{2\pi \times 50 \times 0 . 5 \times {10}^{- 6}} = 6369Ω$

For the circuit(b), $Z = \sqrt{{R}^{2} + {\left({X}_{L} - {X}_{C}\right)}^{2}} > 40Ω$ as

${X}_{L}$ is not equal to ${X}_{C}$. So rms current in (b) can never be larger than (a)