« previous next »

Author Question: Why won't a transformer work (stepup or stepdown potential) if a battery is connected across the ... (Read 29 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
Why won't a transformer work (stepup or stepdown potential) if a battery is connected across the input?
 
  What will be an ideal response?

Question 2

The heat of fusion of lead is 5.9 kcal/kg, the heat of vaporization is 207. cal/kg, and its melting point is 328C. How much heat is required to melt 50. g of lead initially at 23C? (The specific heat of lead is 0.031 kcal/kg-C.)
 
  What will be an ideal response?


T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 27, 2018
Answer to Question 1

It works by induction, but a battery produces constant current and constant flux.

Answer to Question 2

0.77 kcal


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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?

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

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Major Findings of the High Scope Preschool Study High Scope participants showed better academic per Major Findings of the High Scope Preschool Study High Scope participants showed better academic per
The Journey to Work, Philadelphia, 1850 The Journey to Work, Philadelphia, 1850
The oil pressure switch is connected to a warning lamp that alerts the driver of low oil pressure. The oil pressure switch is connected to a warning lamp that alerts the driver of low oil pressure.
Using a DMM to measure the open-circuit voltage of a battery. Using a DMM to measure the open-circuit voltage of a battery.
A star link-type network where all of the modules are connected together using splice packs. A star link-type network where all of the modules are connected together using splice packs.
The Ames test for potential mutagenicity of chemical compounds The Ames test for potential mutagenicity of chemical compounds
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library