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i want you to answer question 2 from the attachment that i sent to you
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Magnetism
1. The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the
magnetic field of the earth and can experience a magnetic force. Suppose a charged particle
traveling with a speed of 9.0x106 m/s encounters the eath's magnetic field at an altitude where
the field has a magnitude of 1.2x10-PT. Assuming that the particle's velocity is perpendicular
to the magnetic field, find the radius of the circular path on which the particle would flow if it
were a proton.
2. An alpha particle (the nucleus of a helium-4 atom) consists of two protons and two
neutrons. A horizontla beam of alpha particles is injected with a speed of 1.3x10 m/s into a
region with a vertical magnetic field of magnitude 0.155 T.
(a) how long does it take for an alpha particle to move halfway through a complete circle ?
(b) if the speed of the alpha particle is doubled, does the time found in (a) increase, decrease
or stay the same ? Explain.
3. Each of the electrons in the beam of a television tube is accelerated from rest through a
potential difference of 12.0 kV. The tube is oriented so that the electrons move horizontally
from geomagnetic south to geomagnetic north. The vertical component of the Earth's
magnetic field points down and has a magnitude of 55.0 microTesla.
(a) In what direction will the beam deflect?
(b) What is the acceleration of a single electron due to the magnetic field?
(c) How far will the beam deflect in moving through a 20 cm long tube?
4. Imagine that you hold a 10 cm segment of wire vertically in a 3 T field directed
horizontally toward you. If the segment carries a 100 A current upward, what is the magnitu
and direction of the magnetic force exerted on it?
5. A coil of wire has an area of 2.0x10-4 m², consists of 100 loops or turns, and contains a
current of 0.045 A. The coil is placed in a uniform magnetic field of magnitude 0.15 T.
a) Determine the magnetic moment of the coil.
b) Find the maximum torque that the magnetic field
can exert on the coil.
Consider the loop of flexible wire shown below. If a
irrent is passed through the loop, will it tend to expand
circular ceruichu even more tightly or
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