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Q.

Statement-01 : The alternating current lags behind the e.m.f. by a phase angle of π / 2 , when ac flows through an inductor 
Statement-02 : The inductive reactance increases as the frequency of ac source decreases

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a

Only Statement-02 is correct

b

Both the Statements are incorrect

c

Both the Statements are correct

d

Only Statement-01 is correct

answer is A.

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Detailed Solution

When ac flows through an inductor current lags behind the emf., by phase of π /2. Inductive reactance XL=ωL=π2f.Lso when frequency increases correspondingly inductive reactance also increases.

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