1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dmitriy555 [2]
3 years ago
14

A copper wire of length 16 cm is in a magnetic field of 0.19 T. If it has a mass of 9.0 g, what is the minimum current through t

he wire that would cause a magnetic force equal to its weight?
Physics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

2.9 A

Explanation:

L = 16 cm = 0.16 m

B = 0.19 T

m = 9 g = 0.009 kg

Let the minimum current be i.

Magnetic force is balanced by the gravitational force

B x i x L = m x g

0.19 x i x 0.16 = 0.009 x 9.8

i = 2.9 A

You might be interested in
Carbon dioxide in the blood is removed from the body through the A. kidneys B. lungs C. mouth D. skin​
natka813 [3]

Answer:

<h2>C) Mouth</h2>

Explanation:

<h2>When we inhale air, it contains oxygen. The lungs take in oxygen and the heart and the other body parts use it.</h2><h2>Carbon dioxide is removed from the blood mouth when we exhale.</h2>
8 0
3 years ago
What does a magnetic field look like <br>​
Lelechka [254]

Answer:Magnetic fields are invisible, at least usually. But scientists from NASA's Space Sciences Laboratory have made them visible as "animated photographs," using sound-controlled CGI and 3D compositing.

Explanation:

5 0
4 years ago
What is the best definition of income tax?
Genrish500 [490]
I say, Taxes are imposed on individuals or entities (taxpayers) that varies with the income or profits of the taxpayer.


6 0
3 years ago
Read 2 more answers
A student swings his keychain around in a circle. What is the source of the centripetal force for this action?
rosijanka [135]

Answer:

Gravity

Explanation:

The source of the centripetal force that keeps the mass in a stable circle is gravity.

8 0
3 years ago
a small rodent lives in an area where the average temperature has been increasing drastically over a very short period of time.
dolphi86 [110]
B. become extinct if the tempurture gets too high

7 0
3 years ago
Read 2 more answers
Other questions:
  • An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?
    15·2 answers
  • Static discharge differs from electric current because static discharge is described by which of the following?
    7·2 answers
  • What is the energy in an atoms nucleus
    8·1 answer
  • A 1,500-kg car accelerates along a flat track to a speed of 20 m/s. how much does it's gravitational potential energy increases
    11·1 answer
  • The value of acceleration due to gravity (g) on Pluto is about . 0.61 meters/second2. How much will an object that weighs 250 ne
    11·1 answer
  • An extraterrestrial "Eratosthenes" performs the equivalent experiment, that Eratosthenes did on Earth, on her/his home world. Sh
    9·1 answer
  • Which of the following calls one might hear a refree make?
    5·2 answers
  • A handbag weighing 162 N is carried by two students each holding the handle of the bag
    14·1 answer
  • The vertical position of the 100-kg block is adjusted by the screw activated wedge. Calculate the moment which must be applied t
    10·1 answer
  • An object of mass M is placed on a disk that can rotate. One end of a string is tied to the object while the other end of the st
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!