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Q.

An inductance of 200π mH a capacitance of1πmF  and a resistance of 10 ohm are connected in series with an ac source of 220 V, 50 Hz. The phase angle of the circuit is

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a

π6

b

π4

c

π3

d

π2

answer is C.

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Detailed Solution

Phase angle φ is tan-1 XL~XCR here XL=Lω= 200π 100π x10-3=20 ohm XC=1Cω=103πx(1100π) =10 ohm R = 10 ohm

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