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Study the circuit (a) and (b) shown in F...

Study the circuit (a) and (b) shown in Fig. and answer the following questions.
(a) Under which conditions would the rms currents in the two circuits be the same ?
Can the rms curent in circuit (b) be larger than that in (a) ?

Text Solution

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(a) The rms current in circuit (b) will be the same as that in circuit (a) only when circuit (b) is at resonance.
(b) the impedance of circuit (b) is
Z = `sqrt(R^(2) + (X_(L) - X_(C) )^(2)) ge R`
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