Download Worksheet – Magnetic fields 3 - Westgate Mennonite Collegiate

WORKSHEET: F = qvBsin2
1.
A beam of electrons moves at right angles to a magnetic field of strength
6.0 X 10-2 T [S]. The electrons have a velocity of 2.5 X 107 m/s [W]. What is the
magnitude and direction of the force acting on each electron?
(2.4 X 10-13 N [D])
2.
An electron passes through a magnetic field at right angles to the field at a velocity of
4.0 X 106 m/s [U]. The strength of the magnetic field is 0.50 T [L]. What is the
magnitude and direction of the force acting on the electron?
(3.2 X 10-13 N [F])
3.
A stream of doubly ionized particles (missing two electrons) moves at a velocity of
3.0 X 104 m/s [R] perpendicularly to a magnetic field of 9.0 X 10-2 T [D]. What is the
magnitude and direction of the force acting on each ion?
(8.64 X 10-16 N [F])
4.
a)
b)
A beta particle (an electron moving really fast) is traveling at right angles to a
magnetic field of induction 0.6 T [N]. If the particle has a speed of
(2.4 X 10-12 N [D])
2.5 X 107 m/s [E], what force acts on the particle?
The mass of an electron is about 9.0 X 10-31 kg. What acceleration does the beta
particle undergo in the direction of the force acting on it? (2.67 X 1018 m/s2)
5.
A singly ionized particle experiences a force of 4.1 X 10-13 N [U] when it travels at right
angles through a magnetic field of induction 0.61 T [R]. What is the velocity of the
particle (magnitude and direction)?
(4.2 X 106 m/s [B])
6.
A force of 5.78 X 10-16 N acts on an unknown particle traveling at a 90E angle through a
magnetic field. If the velocity of the particle is 200 000 km/h and the induction of the
field is 3.20 X 10-2 T, how many elementary charges does the particle carry?
(2)
7.
a)
b)
Triply-ionized particles in a beam carry a net positive charge of three elementary
charge units. The beam enters a field of magnetic induction 4.0 X 10-2 T [D] and
the particles have a velocity of 9.0 X 106 m/s [D30ER]. What is the magnitude of
(8.6 X 10-14 N)
the force acting on each particle?
Triply-ionized particles in a beam carry a net positive charge of three elementary
charge units. The beam enters a field of magnetic induction 4.0 X 10-2 T [D] and
the particles have a velocity of 9.0 X 106 m/s [R30ED]. What is the magnitude of
(1.5 X 10-13 N)
the force acting on each particle?
8.
Doubly-ionized helium atoms (alpha particles) are traveling through a magnetic field at a
velocity of 4.0 X 104 m/s [S15EW]. The induction of the field os 5.0 X 10-2 T [W]. What
is the magnitude of the force that acts on each particle?
(6.2 X 10-16 N)
9.
a) A muon (a particle with the same charge as an electron) is traveling at
4.21 X 107 m/s [E] which happens to be at right angles to the magnetic field. The muon
experiences a force of 5.00 X 10-12 N [D]. What is the induction of the field?
(0.74 T [N])
b) The mass of a muon os 1.88 X 10-28 kg. What acceleration does the muon experience?
(2.8 X 1016 m/s2)