Author Question: A vertical wire carries a current straight down. To the east of this wire, the magnetic field points ... (Read 83 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
A vertical wire carries a current straight down. To the east of this wire, the magnetic field points
 
  A)
 
  north.
  B)
 
  east.
  C)
 
  west.
  D)
 
  south.
  E)
 
  down.

Question 2

The windings of a motor have a resistance of 4.0 . The counter emf of this motor when connected to a 120-V line and running at full speed is 104 V.
 
  (a) What is the start up current of this motor? (b) What is the current in the motor when running at full speed?



cswans24

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

D

Answer to Question 2

(a) 30 A
(b) 4 A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

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?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

For a complete list of videos, visit our video library