This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 45-mH ideal inductor is connected in series with a 60- resistor through an ideal 15-V DC power ... (Read 78 times)

Awilson837

  • Hero Member
  • *****
  • Posts: 509
on: Jul 29, 2018
A 45-mH ideal inductor is connected in series with a 60- resistor through an ideal 15-V DC power supply and an open switch. If the switch is closed at time t = 0 s, what is the current 7.0 ms later?
 
  A) 250 mA
  B) 650 mA
  C) 550 mA
  D) 280 mA
  E) 850 mA

Question 2

A series LR circuit contains an emf source of having no internal resistance, a resistor, a inductor having no appreciable resistance, and a switch.
 
  If the emf across the inductor is of its maximum value after the switch is closed, what is the resistance of the resistor?
  A) 14
  B) 1.9
  C) 1.5
  D) 5.0


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

smrerig

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


Awilson837

  • Member
  • Posts: 509
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Cylinder Power Balance Test Cylinder Power Balance Test
Small local hydroelectric power generators have more future potential Small local hydroelectric power generators have more future potential
The demand for cheap coal to generate electrical power is rising The demand for cheap coal to generate electrical power is rising
Social Problems: A Critical Power-Conflict Perspective Social Problems: A Critical Power-Conflict Perspective
Getting Connected Getting Connected
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Video: Elementary kinetics

For a complete list of videos, visit our video library