Post Utme Skyline University 2020 Physics Question 21

Practice objective / multiple choice question 21 from the 2020 Post Utme Skyline University Physics examination.

Post Utme Skyline University 2020 Physics Objective / Multiple Choice
Question 21 POST_UTME_SKYLINE_UNIVERSITY • 2020 • PHYSICS • objective
Post Utme Skyline University 2020 Physics Question 21 diagram

A coil of wire has a resis\tance of $R$ and an induc\tance of $L$. If the coil is connected to a battery of emf $\mathcal{E}$, find the current in the coil after a time $t$.

Answer Options

Correct Answer A. \frac{\mathcal{E}}{R} \( 1 - e^{-\frac{Rt}{L}} \)
B. \frac{\mathcal{E}}{R} e^{-\frac{Rt}{L}}
C. \frac{\mathcal{E}}{R} \( 1 + e^{-\frac{Rt}{L}} \)
D. \frac{\mathcal{E}}{R} \( 1 - e^{\frac{Rt}{L}} \)
Correct Answer
A
Correct Option:
\frac{\mathcal{E}}{R} \( 1 - e^{-\frac{Rt}{L}} \)

About This Question

This is Post Utme Skyline University 2020 Physics Question 21. It is one of the objective questions from the 2020 Post Utme Skyline University Physics examination.

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