« previous next »

Author Question: The primary of a transformer A) has an iron core. B) may or may not have an iron core. C) has ... (Read 131 times)

stevenposner

  • Hero Member
  • *****
  • Posts: 608
on: Jul 29, 2018
The primary of a transformer
 
  A) has an iron core.
  B) may or may not have an iron core.
  C) has more turns of wire than the secondary.
  D) none of the above

Question 2

A step-up transformer steps up voltage by ten times. Neglecting slight losses, if 100 W of power go into the primary coil, the power coming from the secondary coil is
 
  A) 1 W.
  B) 10 W.
  C) 100 W.
  D) 1000 W.
  E) none of the above


angrybirds13579

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

stevenposner

  • Hero Member
  • *****
  • Posts: 608
Reply #2 on: Jul 29, 2018
Thank you!


angrybirds13579

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Plant apical meristems and the primary tissues they produce. Plant apical meristems and the primary tissues they produce.
Emission spectrum of iron Emission spectrum of iron
Primary neurulation Primary neurulation
Levels of protein structure: Primary structure Levels of protein structure: Primary structure
High net primary productivity High net primary productivity
One pathway of primary succession in Alaska’s Glacier Bay region. One pathway of primary succession in Alaska’s Glacier Bay region.
Video: Requirements for nervous signals

For a complete list of videos, visit our video library