LR Circuits: A series circuit consists of an open switch, an ideal emf source ?0, a 5.0-k? resistor, and a 4.0-H inductor. If the potential across the resistor is 65.0 V at 2.0 ms after the switch is closed, find the source emf, ?0.

A. 71 V
B. 36 V
C. 76 V
D. 56 V


Answer: A

Physics & Space Science

You might also like to view...

To date a rock thought to be many millions of years old, you should not use the decay of

A) uranium to lead. B) potassium to argon. C) carbon-14.

Physics & Space Science

What is the carnot cycle?

Physics & Space Science

The fastest moving planet in a solar system is the

A) smallest planet. B) most massive planet. C) planet nearest the Sun. D) planet farthest from the Sun. E) all move at the same speed.

Physics & Space Science

The outflow channels on Mars indicate a flood period in the history of Mars. During this time, based on the width and depth of the remaining riverbed, it is thought that the flow rate must have been:

A) just a small trickle, barely more than a stream of water. B) moderate, about the flow rate of the Ohio River. C) fairly large, about the flow rate of the current Colorado River. D) significantly large, about the flow rate of the Amazon River. E) enormous, as much as 100 times the flow rate of the Amazon River.

Physics & Space Science