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 138 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
Gracias!

mammy1697

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

The electron-carrying coenzymes NAD+ and FAD The electron-carrying coenzymes NAD+ and FAD
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
Fluidization - Calibration Table Pump #1 Fluidization - Calibration Table Pump #1
Checklist for Choosing a Massage Table Checklist for Choosing a Massage Table
Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ... Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ...
Video: DNA Sequences - Dideoxy Sequencing

For a complete list of videos, visit our video library