A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________?

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Academy of PakistanTest & Learning

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AR+1/2πfL

B(R2+f2L2)

C(R+2πfL)

D(R2+4π2f2L2)

Correct answer

D. (R2+4π2f2L2)

Explanation

(R2+4π2f2L2) is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________? - Answer and Explanation | Academy of Pakistan