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

Author Question: A transformer is designed to step down the 120 V line voltage to 9 V. If there are 400 turns on the ... (Read 17 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jul 29, 2018
A transformer is designed to step down the 120 V line voltage to 9 V. If there are 400 turns on the input coil, how many turns should there be on the output coil?

Question 2

(a) What is the wavelength of the peak of the blackbody radiation curve for something at 3,000 kelvins (the temperature of the filament of a light bulb)? (b) What type of EM wave is this?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amanda_14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 29, 2018
Answer to Question 1

30

Answer to Question 2

(a) 9.67  107 m, (b) infrared


LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 29, 2018
TY


amanda_14

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant
This Black-browed Albatross has been hooked on a long-line. This Black-browed Albatross has been hooked on a long-line.
Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into
Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken
Using a scan tool to check battery voltage. Using a scan tool to check battery voltage.
Write the equation for the voltage at any instant, and find the voltage at 4.0 s Write the equation for the voltage at any instant, and find the voltage at 4.0 s
Video: Cerebral Cortex Animation

For a complete list of videos, visit our video library