A) \[{{l}_{m}}=\frac{Z}{{{V}_{m}}}\]
B) \[{{l}_{m}}=\frac{{{V}_{m}}}{{{X}_{L}}}\]
C) \[{{l}_{m}}=\frac{{{V}_{m}}}{{{X}_{C}}}\]
D) \[{{l}_{m}}=\frac{{{V}_{m}}}{R}\]
Correct Answer: D
Solution :
(d) \[{{l}_{m}}=\frac{{{V}_{m}}}{R}\] Impedance of the circuit, \[Z=\sqrt{{{R}^{2}}+{{\left( {{X}_{L}}-{{X}_{C}} \right)}^{2}}}\] Resonance, \[{{X}_{L}}={{X}_{C}}\] \[Z=R\] \[\therefore {{l}_{m}}=\frac{{{V}_{m}}}{Z}=\frac{{{V}_{m}}}{R}\]You need to login to perform this action.
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