Question

An electron moves with a velocity, v = ( 4i + 2 j)x106 m/s in a region where there is a uniform magnetic field, B = (0.5 j) T. (a) Find the magnitude and direction of the force acting on the electron as it enters into the magnetic field.(b) Find the pitch of the helical motion. (c) What is the work done by the magnetic force during 1 cycle of the motion? (e = - 1.6x10-19 C, me = 9.10 x10-31 kg).

Answer #1

An electron has velocity V = (29i + 38j) km/s as it enters a
uniform magnetic field B= 50 i µT. What are (a) the radius of the
helical path taken by the electron and (b) the pitch of that path?
(c) To an observer looking into the magnetic field region from the
entrance point of the electron, does the electron spiral clockwise
or counterclockwise as it moves? The charge of an electron is
-1.602 × 10-19 C and its...

An electron with a velocity given by v⃗ =(1.6×105 m/s
)x^+(6700 m/s )y^ moves through a region of space with a magnetic
field B⃗ ==(0.26 T )x^−(0.10 T )z^ and an electric field E⃗ =(220
N/C )x^.
Using cross products, find the magnitude of the net force acting
on the electron. (Cross products are discussed in Appendix A.)
Express your answer using two significant figures.

An electron is accelerated in the positive x direction through a
potential difference of 160 V. It then enters a region with a
uniform magnetic field of 0.80 T in the positive z direction.
(a) What is the speed of the electron?
(b) What is the magnitude and direction of the magnetic force on
the electron?

An electron moves at 2.70×106 m/s through a region in
which there is a magnetic field of unspecified direction and
magnitude 7.10×10−2 T What is the largest possible
magnitude of the acceleration of the electron due to the magnetic
field IN M/S^2?)

An electron moves through a uniform magnetic field given by = Bx
i ̂ +(4.52 Bx) j ̂ . At a particular instant, the electron has
velocity v → = (2.66 i ̂ +4.30 j ̂ ) m/s and the magnetic force
acting on it is (4.31 × 10-19) k ̂ N. Find Bx.

An electron (q=-1,6x10-19C, m=9,1x10-31kg)
enters a uniform magnetic field, whih is in +x axis and it has
magnitude of 2T. At t=0, the velocity components
vx=3x105m/s,
vy=4x105m/s and vz=0.
a-At t=0 calculate the magnetic force acting on proton and its
acceleration.
b- Calculate the Radius of helical path
c- Calculate the angular velocity
d- Calculate the pitch of helix. (0=4x10-7
MKS)
Help quickly I get you thumbs up directly

10- A particle moving at speed of 3x105 m/s enters
perpendicularly in to a uniform magnetic field of 0.10 tesla .what
is the magnitude and the direction of magnetic force acting on the
particle by the magnetic field . a) The particle is an electron. b)
The particle is a proton.

An electron moves at 2.50 x 106 m/s through a region in which
there is a magnetic field of unspecified direction and magnitude
7.40 x 10-2 T. (a) What is the smallest possible magnitude of the
acceleration of the electron due to the magnetic field?(1.5 marks)
(b) What is the largest possible magnitude of the acceleration of
the electron due to the magnetic field? (c) If the actual
acceleration of the electron is one-fourth of the largest magnitude
in part...

An electron is accelerated through 2,200 V from rest and then
enters a region where there is a uniform 1.50 T magnetic field.
What are the maximum and minimum magnitudes of the magnetic force
acting on this electron?
A) maximum in N
B) minimum in N

An electron is accelerated through 2200 V from rest and then
enters a region where there is a uniform 1.80 T magnetic field.
What are the maximum and minimum magnitudes of the magnetic force
acting on this electron?
(a) maximum
_______ N
(b) minimum
_______ N

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