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Q.

A circuit has a resistance of 11Ω, an inductive reactance of 25Ω and a capacitive resistance of 18Ω.  It is connected to an ac source of 260 V and 50 Hz. The current through the circuit (in amperes) is

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a

11

b

15

c

18

d

20

answer is D.

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Detailed Solution

Z=R2+(XL−XC)2=(11)2+(25−18)2=13 ΩCurrent  i=26013=20 A
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