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
shtirl [24]
3 years ago
11

An electron is accelerated through a potential difference of 3.1 kV and directed into a region between two parallel plates separ

ated by 17 mm with a potential difference of 100 V between them. The electron is moving perpendicular to the electric field when it enters the region between the plates. What magnetic field is necessary perpendicular to both the electron path and the electric field so that the electron travels in a straight line?
Physics
1 answer:
Lapatulllka [165]3 years ago
3 0

Answer: 178.25*10^-6 T

Explanation: In order to solve this problem we have to take into account the equilibrium between the electric and magnetic forces in the electron, so it is given by:

Fm=evB

Fe=eE so

evB=eE the we have

v=E/B

Firsly we calculate the velocity of the electron before to get the parallel plates at 100V

eΔV=1/2*m*v^2 then

v=(2*eΔV/m)^1/2

v=(2*1.6*10^-19*3.1*10^3/9.1*10^-31)^1/2=33 *10^6 m/s

Then we can calculate B

B=E/v   E.d=V  where d is the separation between the plates and V is equal a 100V

B=V/(d*v)=100/(17*10^-3*33 *10^6)=178.25*10^-6 T

You might be interested in
Wat does gas mean in science
irinina [24]
Basically its just an air like fluid with chemicals.... just like air it just goes as it pleases and fills space
6 0
3 years ago
Read 2 more answers
Reading glasses use what property of light waves
tresset_1 [31]
Visible range of electromagnetic radiation
5 0
3 years ago
a bicycle travels at a velocity of -2.33 m/s and has a displacement of -58.3 m. how much time did it take?
Alexandra [31]
We know that velocity is equal to the total displacement of an object over time.
velocity =  \frac{displacement}{time}
Deriving from that equation, we can say that:
t =  \frac{d}{v}
Okay, so here it goes:
t =  \frac{58.3m}{2.33 \frac{m}{s} } \\ t = 25.02s
The bicycle took 25.02 seconds to displace at 58.3 meters.
5 0
3 years ago
which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain
erma4kov [3.2K]
The duck at 12m/s has a greater speed than the heron which travels at 10m/s
4 0
3 years ago
Read 2 more answers
A force of 8.0 N is along x direction, another force of 6.0 N is along +y direction. If both forces are acting on a point object
Darya [45]

Answer:

Resultant force, R = 10 N

Explanation:

It is given that,

Force acting along +x direction, F_x=8\ N

Force acting along +y direction, F_y=6\ N

Both the forces are acting on a point object located at the origin. Let the resultant force of the object is given by R. So,

R=\sqrt{F_x^2+F_y^2+F_xF_y\ cos\theta}

Here \theta=90^{\circ}

R=\sqrt{F_x^2+F_y^2}

R=\sqrt{8^2+6^2}

R = 10 N

So, the resultant force on the object is 10 N. Hence, this is the required solution.

6 0
3 years ago
Other questions:
  • What is the momentum of a 5 kg object that has a velocity of 1.2 m/s?
    12·2 answers
  • A static stretch is ?
    10·2 answers
  • What do Fauvism and Primitivism have in common? a. flattened figures b. opposition to current culture c. unrealistic color d. ar
    12·2 answers
  • Tim puts his spare change in a jar each day when he comes home. When the jar is full he separates the coins and takes them to th
    15·1 answer
  • Consider the direction field of the differential equation dy/dx = x(y − 6)2 − 4, but do not use technology to obtain it. Describ
    7·1 answer
  • How do we know Earth is spinning, not the Sun?
    8·1 answer
  • A 0.2-kg ball moving at 2.0 m/s perpendicular to a wall rebounds from the wall at 1.5 m/s. The impulse given to the ball is:
    13·1 answer
  • Unpolarized light is passed through an optical filter that is oriented in the vertical direction.
    14·1 answer
  • Alexandra drops an egg from 30 m above the ground to hit Vanessa on the head. If Vanessa stands 3.5 meters tall. How fast is the
    13·1 answer
  • Which of the following is a compound?<br> Bi<br> Np+Pu<br> RfBh<br> Y
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!