« previous next »

Author Question: A vertical wire carries a current straight down. To the east of this wire, the magnetic field points ... (Read 183 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
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

cdr_15

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 29, 2018
TY


cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Preparation of sterile field 2 Preparation of sterile field 2
Transcranial Magnetic Stimulation and PTSD Transcranial Magnetic Stimulation and PTSD
A spark tester connected to a spark plug wire or coil output. A typical spark tester will fire only ... A spark tester connected to a spark plug wire or coil output. A typical spark tester will fire only ...
Locations and reference zones of trigger points that cause headaches. A. Upper trapezius. B. ... Locations and reference zones of trigger points that cause headaches. A. Upper trapezius. B. ...
Press Bladder meridian points along upper orbital ridge with fingertips, from B-1 on the inside ... Press Bladder meridian points along upper orbital ridge with fingertips, from B-1 on the inside ...
Gulf Stream/North Atlantic Current Gulf Stream/North Atlantic Current
Video: Autonomic Nervous System Animation

For a complete list of videos, visit our video library