Electro Magnetic Induction And Alternating Currents Question 195

Question: As , value of inductive reactance XL will be if source voltage is 100 volt

Options:

A) 40,Ω

B) 30,Ω

C) 50,Ω

D) can have any value

Show Answer

Answer:

Correct Answer: C

Solution:

  • V=I(20+10)2+(XL+XLXC)2

    100=2(30)2+(30+XL40)2

    (50)2=(30)2+(XL10)2

    (XL10)2=80×20:XL10=40 ; XL=50,Ω



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