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Inductors - Technical MCQs

Q1:

Find IR and IL.

mcq8_1035_1.gif

A IR = 50 mA, IL = 109 mA

B IR = 150 mA, IL = 9 mA

C IR = 50 mA, IL = 151 mA

D IR = 150 mA, IL = 53 mA

ANS:D - IR = 150 mA, IL = 53 mA

For parallel RL circuit:
IR=Vin/R ==> 300/2K ==>150mA
Il= Vin/XL ==> 200/(2*Pi*F*L) ==> 200/(2*3.14*450*2) ==>53mA