Question

An electron follows a helical path in a uniform magnetic field given by = (20 i ̂ - 54 j ̂ - 33 k ̂ ) mT. At time t = 0, the electron's velocity is given by v → = (21 i ̂ - 26 j ̂ + 43 k ̂ ) m/s. (a) What is the angle φ between v → and B → ? The electron's velocity changes with time. (b) Do its speed changes with time? (c) Do its angle φ changes with time? (d) What is the radius of the helical path?

Answer #1

An electron follows a helical path in a uniform magnetic field
given by = (22 i ̂ -60j ̂ - 36 k ̂ ) mT. At time t = 0, the
electron's velocity is given by v → = (21 i ̂ - 28 j ̂ + 40 k ̂ )
m/s. (a) What is the angle φ between v → and B → ? The electron's
velocity changes with time. (b) Do its speed changes with time? (c)
Do...

An electron follows a helical path in a uniform magnetic field
given by B→= (19 î - 59ĵ - 27k̂) mT. At time t = 0, the
electron's velocity is given by v→ = (22î - 24ĵ + 53k̂) m/s.
(a) What is the angle φ between v→ and B→? The
electron's velocity changes with time. (b) Do its
speed changes with time? (c) Do its angle φ
changes with time? (d) What is the radius of the
helical path?

An electron follows a helical path in a uniform magnetic field
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An electron is shot into one end of a solenoid. As it enters the
uniform magnetic field within the solenoid, its speed is 800 m/s
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An electron enters a region of space containing a uniform
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and the frequency ? of the motion.

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