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Q.

In an AC circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle beTween voltage and current by 450, the value of inductive reactance will be

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a

R/4

b

R/2

c

R

d

cannot be found with the given data

answer is C.

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Detailed Solution

For LR circuit, XL = ωLtanϕ=ωLR=XLRFor ϕ=450, tan450=XLR  or XL=R
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