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

Author Question: A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a magnetic field of 0.10 T. What ... (Read 73 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jul 29, 2018
A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a magnetic field of 0.10 T. What minimum current in the rod is needed in order for the magnetic force to cancel the weight of the rod?
 
  A)
 
  1.2 A
  B)
 
  2.5 A
  C)
 
  4.9 A
  D)
 
  7.6 A
  E)
 
  9.8 A

Question 2

2.0 A in the 100-turn primary of a transformer causes 14 A to flow in the secondary. How many turns are in the secondary?
 
  A)
 
  700
  B)
 
  356
  C)
 
  114
  D)
 
  14
  E)
 
  4
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

k2629

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


ss2343

  • Member
  • Posts: 548
Reply 2 on: Jul 29, 2018
Excellent

coreycathey

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Hare running in open field Hare running in open field
A trilobite fragment (T) in a thin-section of an Ordovician limestone; E=echinoderm; scale bar is 2 A trilobite fragment (T) in a thin-section of an Ordovician limestone; E=echinoderm; scale bar is 2
Preparation of sterile field 4 Preparation of sterile field 4
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ... Determine the mass percent of Fe3+ in a 0.546g sample of iron ore, if 22.40 mL of a 0.1000 M ...
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
Video: DNA Replication Factory and Protein

For a complete list of videos, visit our video library