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

Author Question: How far above the horizon is the sun on the first day of summer? What will be an ideal ... (Read 39 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Jul 26, 2018
How far above the horizon is the sun on the first day of summer?
 
  What will be an ideal response?

Question 2

A certain installation requires 36 V and at least 2 kW of rated power. Describe the configuration using 36-cell modules, where each module produces 12 V and 4 A.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 26, 2018
Answer to Question 1

On the first day of summer, the sun is at the latitude of the observer plus 23.4o at noon.

Answer to Question 2

For three series modules:

VTOT = (3 modules)(12 V/module) = 36 V

ITOT = PTOT/VTOT = 2 kW/36 V = 55.6 A total current to obtain 2 kW out. Number of 3 series modules in parallel = 55.6 A/4 A = 14 groups
The configuration consists of 14 groups in parallel; each group has 3 series modules for a total of 42 modules.


lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
Reply #2 on: Jul 26, 2018
Both answers were spot on, thank you once again


coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 26, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Food web associated with algal turf during the summer in the Eel River, California. Food web associated with algal turf during the summer in the Eel River, California.
In the summer of 1963, Buddhist monks protested against the rule of Diem (and his brother, the ... In the summer of 1963, Buddhist monks protested against the rule of Diem (and his brother, the ...
Summer and Winter Solstices Summer and Winter Solstices
Summer and Winter Solstices Summer and Winter Solstices
Deepwater Horizon Oil Spill Deepwater Horizon Oil Spill
Video: Protein digestion - stomach & small intestine

For a complete list of videos, visit our video library