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

Author Question: A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves ... (Read 61 times)

azncindy619

  • Hero Member
  • *****
  • Posts: 562
on: Jul 29, 2018
A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense.
 
  What is the direction of the magnetic field caused by this current, outside the loop? The magnetic field A)
 
  circles the loop in a clockwise direction.
  B)
 
  circles the loop in a counterclockwise direction.
  C)
 
  points straight up.
  D)
 
  points straight down.
  E)
 
  points toward the east.

Question 2

A DC motor of internal resistance 6.0  is connected to a 24-V power supply. The operating current is 1.0 A.
 
  (a) What is the start-up current? (b) What is the back emf when the motor is running at full speed? (c) What is the back emf when the motor is running at half speed?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

(a) 4.0 A
(b) 18 V
(c) 9.0 V


azncindy619

  • Member
  • Posts: 562
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Current Resistance and Voltage Current Resistance and Voltage
When the engine is cold and before the oxygen sensor is hot enough to achieve closed-loop, the ... When the engine is cold and before the oxygen sensor is hot enough to achieve closed-loop, the ...
Wash all surfaces in a massage room daily, including the massage table. Wash all surfaces in a massage room daily, including the massage table.
A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ... A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ...
table table
APA Table - SPSS APA Table - SPSS
Video: Sigmoidoscopy

For a complete list of videos, visit our video library