Post Utme Pan Atlantic University 2020 Physics Question 13

Practice objective / multiple choice question 13 from the 2020 Post Utme Pan Atlantic University Physics examination.

Post Utme Pan Atlantic University 2020 Physics Objective / Multiple Choice
Question 13 POST_UTME_PAN-ATLANTIC_UNIVERSITY • 2020 • PHYSICS • objective
Post Utme Pan Atlantic University 2020 Physics Question 13 diagram

A circuit consists of a resistor ( R ) and an inductor ( L ) connected in series. The circuit is driven by a voltage source ( V ) with a frequency ( f ). The impedance ( Z ) of the circuit is given by \( Z = \sqrt{R^2 + \( 2pi f L \ \)^2} ). If the frequency is doubled, what is the new impedance?

Answer Options

A. \( \sqrt{R^2 + \( 2pi f L \ \)^2} )
B. \( \sqrt{R^2 + \( 4pi f L \ \)^2} )
Correct Answer C. \( \sqrt{R^2 + \( 8pi f L \ \)^2} )
D. \( \sqrt{R^2 + \( 16pi f L \ \)^2} )
Correct Answer
C
Correct Option:
\( \sqrt{R^2 + \( 8pi f L \ \)^2} )

About This Question

This is Post Utme Pan Atlantic University 2020 Physics Question 13. It is one of the objective questions from the 2020 Post Utme Pan Atlantic University Physics examination.

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