Given below are two statements:
Statement I: When the frequency of an a.c. source in a series 
circuit increases, the current in the circuit first increases, attains a maximum value and then decreases.
Statement II: In a series 
circuit, the value of power factor at resonance is one.
In the light of given statements, choose the most appropriate answer from the options given below .
Text Solution
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The power factor at resonance is one, hence statement -II is true. When frequency increases, current in the circuit first increases, then attains a maximum value and then decreases.
Thus, as suggested by the graph Statement I is correct.
So, when impedance decreases current increases.
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