Author Question: Why won't a transformer work (stepup or stepdown potential) if a battery is connected across the ... (Read 42 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
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
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
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

For a complete list of videos, visit our video library