How Does The Radius Of The Beam Change When You Increase The Voltage And Why

Questions

1. How does the radius of the beam change when you increment the voltage and why? How does the

radius of the axle change when yous increase the current and why?

Every bit you increment the voltage, the radius increases. As you increment current, the radius decreases. If

y'all increase both at the same time, then the radius stays constant. This is because the charge to

mass ratio is constant. Therefore, equally seen in the equation:

, if current were

increases, then the radius would need to be decreased in order to maintain the abiding charge to

mass ratio. In addition, if the voltage were increased, then the radius would demand to be increased

in social club to as well maintain the charge to mass ratio.

3. The process instructs you to measure radius to the outside of the electron beam path. How

does this lessen the impact of the lost electron velocity (described in question 2)?

Helium atoms are used in this situation in order to visualize the electrons. The impact of lost

electron velocity is described every bit collisions with the helium cantlets in the tube to rob the electrons

of their velocity every bit a result of inelastic collisions. Inelastic collisions do not conserve momentum,

so the velocity will non exist conserved either. Since kinetic energy is KE = mv2, a subtract in

velocity would cause a decrease in kinetic energy. This affects the radius of the circle and could

possibly skew the results. To annul this, we use the outside of the electron axle path

considering it does not have as many helium atoms for the electrons to interact with. As a result of

using the location with fewer interactions, the radius is more accurate.

six. Should the currents in each scroll of a pair of Helmholtz coils circulate in the same or opposite

directions? Why?

The current in each coil should circulate in the same management considering the magnetic fields are

additive. Given equal values for current in each coil, if the currents were circulating in opposite

directions, so the magnetic fields would cancel each other out and there would be no magnetic

forcefulness.

8. If instead of electrons, protons were accelerated to the aforementioned velocity 5 in the same magnetic field

B, what differences would it make?

A proton has a greater mass than an electron. Therefore, since an electron and proton have the

same charge, the proton has a lesser charge to mass ratio. A decreased charge to mass ratio would

crusade an increment in radius considering E/m=V/Br. Due westith voltage, magnetic field, and charge held

Source: https://www.studocu.com/en-us/document/baylor-university/physics-nat-behav-sci-ii/seminar-assignments-charge-to-mass-questions/668823

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