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
morpeh [17]
3 years ago
8

A horizontal rectangular surface has dimensions 2.80 cm by 3.20 cm and is in a uniform magnetic field that is directed at an ang

le of 30.0∘ above the horizontal. What must the magnitude of the magnetic field be to produce a flux of 3.10×10−4Wb through the surface?
Physics
1 answer:
koban [17]3 years ago
8 0

Answer:

magnitude of the magnetic field 0.692 T

Explanation:

given data

rectangular dimensions = 2.80 cm by 3.20 cm

angle of 30.0°

produce a flux Ф = 3.10 × 10^{-4}  Wb

solution

we take here rectangular side a and b as a = 2.80 cm and b = 3.20 cm

and here angle between magnitude field and area will be ∅ = 90 - 30

∅ = 60°

and flux  is express as

flux Ф = \int \vec{B}.d\vec{A}   .................1

and Ф = BA cos∅    ............2

so B = \frac{\phi }{Acos\theta }    

and we know

A = ab

so

B = \frac{\phi }{abcos\theta }    ..............3

put here value

B =  \frac{3.10\times 10^{-4} }{2.80 \times 10^{-2}\times 3.20 \times 10^{-2}\times cos60}  

solve we get

B = 0.692 T

You might be interested in
Rock at the top of a 20 m tall hill the rock has a mass of 10 kg how much potential energy does it have
Blizzard [7]
PE = 10 * 10 * 20 = 2000 Joule
6 0
3 years ago
Read 2 more answers
Using a screwdriver to pry off the lid to a paint can is an example of a second class lever.
Serggg [28]
Is this a question? Please provide more information.
8 0
3 years ago
Read 2 more answers
a certain projetor uses a concave mirror for projecting an object's image on a screen .it produces on image that is 4 times bigg
IrinaK [193]

Answer:

f = 1 m

Explanation:

The magnification of the lens is given by the formula:

M = \frac{q}{p}

where,

M = Magnification = 4

q = image distance = 5 m

p = object distance = ?

Therefore,

4 = \frac{5\ m}{p}\\\\p = \frac{5\ m}{4}\\\\p = 1.25\ m

Now using thin lens formula:

\frac{1}{f}=\frac{1}{p}+\frac{1}{q}\\\\\frac{1}{f} = \frac{1}{1.25\ m}+\frac{1}{5\ m}\\\\\frac{1}{f} = 1\ m^{-1}\\\\

<u>f = 1 m</u>

6 0
2 years ago
A small bar of pure gold whose density is 19.3g/cm. Displaces 80 cm
nasty-shy [4]

Answer:

The mass of the gold bar is 1,544 g

Explanation:

3 0
3 years ago
What’s the stored energy related to positions of atoms within molecules
zepelin [54]

Cheimcal engery is related to positions of atoms within molecules..

8 0
3 years ago
Other questions:
  • Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers
    8·1 answer
  • If the primary of a transformer were connected to a dc power source,
    12·1 answer
  • What is cumulative force?
    5·1 answer
  • What feature of a chemical equation represents the law of conservation of matter?
    12·2 answers
  • Is it possible for a car to be accelerating to the west while it is driving to the east?
    5·1 answer
  • When a project is completed on time, the project team must accomplish all of the following activities EXCEPT: ​
    6·1 answer
  • Which illustration best demonstrates longitudinal waves?
    5·1 answer
  • 1. Describe the components of the reflex arc
    8·1 answer
  • Does anyone know how to solve series parallel and combo circuits
    8·1 answer
  • A circus performer wants to land in a net 5 meters to the right of where she will let go of the trapeze. If she is 10 meters abo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!