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 73 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?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

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

Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a
The frontal lobe (green) bounded by the Sylvian fissure (yellow line) and central sulcus (red line), The frontal lobe (green) bounded by the Sylvian fissure (yellow line) and central sulcus (red line),
The end of a typical line wrench, which shows that it is capable of grasping most of the head of ... The end of a typical line wrench, which shows that it is capable of grasping most of the head of ...
A typical evaporative emission control system. Note that when the computer turns on the canister ... A typical evaporative emission control system. Note that when the computer turns on the canister ...
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library