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

Author Question: A current carrying circular loop of wire lies flat on a table top. When viewed from above, the ... (Read 29 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
A current carrying circular 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, inside 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 power transmission line 50 km long has a total resistance of 0.60 . A generator produces 100 V at 70 A.
 
  In order to reduce energy loss due to heating of the transmission line, the voltage is stepped up with a transformer with a turns ratio of 100:1. (a) What percentage of the original energy would be lost if the transformer were not used? (b) What percentage of the original energy is lost when the transformer is used?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chereeb

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) 42
(b) 0.0042


jho37

  • Member
  • Posts: 531
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Drugs and their effect table Drugs and their effect table
A wire wound electrical heater is used to warm the intake air on some diesel engines A wire wound electrical heater is used to warm the intake air on some diesel engines
Stretch the extensor muscles with flexion at the wrist. Reposition the palm to face the table. Apply ... Stretch the extensor muscles with flexion at the wrist. Reposition the palm to face the table. Apply ...
Mobilize the rib cage. Redrape to cover the chest, and stand to one side of the table. Place your ... Mobilize the rib cage. Redrape to cover the chest, and stand to one side of the table. Place your ...
Meander Loop on the Colorado River Meander Loop on the Colorado River
A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is ... A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is ...
Video: Effect of blood chemistry - stimuli, hyperventilation response and hypoventilation response

For a complete list of videos, visit our video library