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2 cards from this section. Quick, good the night before a test.
What happens to a charged particle in a magnetic field?
Think about perpendicular forces and motion.
Write down the formula for the radius of a charged particle's circular path.
It involves mass, charge, and velocity.
What is the motion of a charged particle in a magnetic field?
Think about the force's direction.
Increasing the velocity of a charged particle while keeping the magnetic field constant will decrease its circular path radius. True or False?
Review the radius formula clearly.
An electron with a charge of -1.6 x 10^-19 C and mass 9.11 x 10^-31 kg enters a magnetic field of strength 1 T at an angle of 90° with a speed of 3 x 10^7 m/s. Calculate the radius of its path.
Keep track of the signs; the charge affects direction but not radius in this case.
If a charged particle takes 0.1 seconds for a full circular revolution in a magnetic field of 0.2 T, determine its mass if its charge is 1.6 x 10^-19 C.
Rearranging formulas is key! Ensure to plug values carefully.
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