« previous next »

Author Question: A circuit consists of a 10-mH coil, a 12-W resistor, a 60-W resistor, a 9.0-V battery, and a switch, ... (Read 77 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
on: Jul 28, 2018
A circuit consists of a 10-mH coil, a 12-W resistor, a 60-W resistor, a 9.0-V battery, and a switch, all in series. What is the time constant of this circuit?
 a. 2.5  103 s
  c. 1.4  104 s
  b. 5.6  104 s
  d. 9.0  102 s

Question 2

A long string is pulled so that the tension in it increases by a factor of four. If the change in length is negligible, by what factor does the wave speed change?
 a. 0.25
  c. 2.0
  b. 0.50
  d. 4.0


Koolkid240

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt
A visual inspection on this battery showed that the electrolyte level was below the plates in all ... A visual inspection on this battery showed that the electrolyte level was below the plates in all ...
The varying voltage signal from the pickup coil triggers the ignition module. The ignition module ... The varying voltage signal from the pickup coil triggers the ignition module. The ignition module ...
Clip-on adapters are used with an ignition system that uses an integral ignition coil. Clip-on adapters are used with an ignition system that uses an integral ignition coil.
A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ... A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ...
When the teacher about to switch the PowerPoint and you still not done taking notes When the teacher about to switch the PowerPoint and you still not done taking notes
Video: Sickle Cell Anemia

For a complete list of videos, visit our video library