# Physics

posted by .

A beam of unknown charged particles passes at right angle to the direction of magnetic field of 9.0 10-2 T. If the speed of the particles is 3.0 104 m/s and force experienced by a particle is 8.64 10-16 N, how many electric charges are carried by one particle?

{Force} = F = {Charge}*{Velocity}*{Magnetic Field Strength} = Q*V*B

----> {Charge} = Q = F/(V*B)

----> {Charge} = (8.64e-16)/((3.0e+4)*(9.0e-2))

----> {Charge} = 3.2e-19 Coulombs

----> {# Electric Charges} = {Charge}/(1.6e-19)

----> {# Electric Charges} = (3.2e-19)/(1.6e-19)

----> {# Electric Charges Per Particle} = 2

• Physics -

correct thinking.

## Similar Questions

1. ### Physics

A beam of unknow charged particles passes at right angles to the direction of magnetic field of 9.0 x 10^-2 T. if the speed of the particles is 3.0 x 10^4 m/s and the force experiences by a particle is 8.64 x 10^-16 N. How many electric …
2. ### Physics

A beam of unknown charged particles passes at right angles to the direction of magnetic field of 9.0x10^-2 T. If the speed of the particles is 3.0 x10^4m/s and the force experienced is 8.64x10^-16N, how many electric charges are carried …
3. ### physics

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 9.80 x 10^6 m/s encounters …
4. ### physics-nuclear reactors

a) Let's assume a nuclear reactor was a completely isolated system, such that no matter particles can escape from it and the only thing that can get out is energy in the form of heat and radiation. If we weigh the whole reactor before …
5. ### Physics

Question- A deflecting force is experienced by a charged particle entering a magnetic field. The deflecting force is always______ A. parallel to the magnetic field lines B. parallel to the motion of the charged particle C. perpendicular …
6. ### Physics

2 queations: 1) a proton enters a magnetic feild at a right angle to the field. an alpja particle enters the same field at the same angle but with twice the speed. once in the magnetic field both particles move in a circular path. …
7. ### Physics

Two charged particles initially are traveling in the positive x direction, each with the same speed v, and enter a non-zero magnetic field at the origin O. The magnetic field for x>0 is constant, uniform and points out of the page. …
8. ### Physics 1

The drawing shows three particles far away from any other objects and located on a straight line. Particle B is located in the middle of particles A and C. The distance between particles A and B is 0.500 m. The distance between particles …
9. ### physics

In Figure 20.2 is a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field E which is oriented …
10. ### Physics

Two charged particles have equal mass and carry charges of 2 nC and 3 nC respectively. They enter a magnetic field of strength 2 mT at the same velocity. Assuming that both particles exit the field parallel to each other and perpendicular …

More Similar Questions