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 91 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
Gracias!

lkanara2

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
POWER POINT PRESENTATION logo POWER POINT PRESENTATION logo
Some ignition coils are electrically connected, called married (top figure), whereas others use ... Some ignition coils are electrically connected, called married (top figure), whereas others use ...
Power-tower in Southern California, largest such facility in the world Power-tower in Southern California, largest such facility in the world
The Power of Classical Conditioning The Power of Classical Conditioning
How much voltage does the resistor drop in Figure 10-2? How much voltage does the resistor drop in Figure 10-2?
Video: Alzheimer's Disease

For a complete list of videos, visit our video library