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
nekit [7.7K]
3 years ago
7

A conducting bar slides without friction on two parallel horizontal rails 50 cm apart. The resistance of the bar and the rails i

s assumed to be constant and equal to 0.1 Ω. A uniform magnetic field is perpendicular to the plane of the rails. A force F = 0.08 N is required to keep the bar moving at a constant speed of 0.5 m/s. What is the magnitude of the magnetic field?
English
1 answer:
Airida [17]3 years ago
5 0

ANSWER:

0.253 T

EXPLANATION:

we know that Lorentz force (force on a moving conductor ) is given by

F= BILSIN\Theta

where B= magnetic field

           I= current through conductor

           sinΘ=90° given

so F=BIL

B=\frac{F}{LI}

\frac{dA}{dt}=0.5\times 0.5 =0.25 m^{2}/sec

V=\frac{d\left ( BA \right )}{dt}=B\frac{dA}{dt}

=B×0.25

I=\frac{V}{0.1}

=B×2.5

B^{2}=\frac{0.08}{0.5\times 2.5}

B=0.253 T

You might be interested in
Which choice restates the sentence above with correct punctuation? A) The last batch of batteries which we purchased from the ge
katrin [286]

Answer:

The correct answer would be D

Explanation:

This is because neither A or B nor C have the correct punctuation.

4 0
4 years ago
In the play, Julius Caesar, why does Brutus eventually decide to go along with the plot to kill his friend Caesar?
Tatiana [17]
<span>He worries that Caesar has gotten too popular and will abuse his power once he s crowned. Brutus thinks that once Caesar has the power, he will be corrupt. So, as early as that moment, he prevented that event will happen.</span>
5 0
3 years ago
16) The word "literacy" in Media Literacy refers to:
Fiesta28 [93]

Answer:

OD) Learning how to read more quickly.

Explanation:

Because the meaning of the literary is-" the ability to read and write ." So that I think OD is correct answer.

7 0
3 years ago
What is Boxer’s ambition after the Battle of the Windmill?
Ymorist [56]

Retirement ages for the animals and the pigs.

The pigs arranged parades - animals stopped work marched in military fashion,

Pigs leading,

horses,

cows,

sheep,

poultry

and the dogs

flanked the procession, Napoleon is marching first.

5 0
3 years ago
What is your interpretation of a suffix?
harkovskaia [24]

Answer:

B. A suffix is like a prefix, only it comes at the end of the word.

Explanation:

What is your interpretation of a suffix?

A suffix is like a prefix, only it comes at the end of the word.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Write a short paragraph of no more than ten lines on the "Advantages of Having Green Hair." Remember to pack in as much informat
    6·1 answer
  • A 1913 California law forced Japanese Americans to
    6·2 answers
  • What is the action verb of: the forces of nature possess incredible power.
    13·1 answer
  • Will mark brainliest answer if it right! No guessing please!
    15·2 answers
  • Which of the following is true regarding Waverly “Meimei” Jong’s struggle to master “invisible strength” in the short story “Rul
    8·2 answers
  • Early this morning we set the instruments on the table, and now we’re waiting for our teacher.
    10·1 answer
  • write a research based essay in which you discuss the causes and effects of gender-based violence (GBV) (300) words .Part B how
    10·1 answer
  • Question 9 (2 points) Re-read paragraph 4 of the excerpt. What does Zaroff's actions in this paragraph most likely foreshadow? Z
    8·1 answer
  • "in shakespeare's day, children could determine their own lives and make their own choices" true or false?
    10·1 answer
  • Which of these best describes the relationship between Harriet Tubman and the Union Army?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!