A device known as a velocity selector consists of a parallel-plate capacitor, producing a uniform electric field, E, and a magnet, producing a uniform magnetic field, B, between the plates of the capacitor. Charged particles enter the region between the capacitor plates with a certain velocity. The arrangement is such that E, B and the initial particle velocity are all perpendicular to each other. When a charged particle enters the region between the capacitor plates, it experiences both a magnetic force and an electric force. By adjusting the two fields, only charges with a specific velocity will travel straight through the device. In this example, a proton enters the device traveling with a speed of 6.4 e5 m/s. The strength of the magnetic field is 9.4 T. The distance between the two plates is 2.0 mm. (Draw the forces!!!) What should the plate voltage (in V) be set to so the proton will travel straight through the plates?
A device known as a velocity selector consists of a parallel-plate capacitor, producing a uniform electric field, E, and a magnet, producing a uniform magnetic field, B, between the plates of the capacitor. Charged particles enter the region between the capacitor plates with a certain velocity. The arrangement is such that E, B and the initial particle velocity are all perpendicular to each other.
When a charged particle enters the region between the capacitor plates, it experiences both a magnetic force and an electric force.
By adjusting the two fields, only charges with a specific velocity will travel straight through the device.
In this example, a proton enters the device traveling with a speed of 6.4 e5 m/s. The strength of the magnetic field is 9.4 T. The distance between the two plates is 2.0 mm. (Draw the forces!!!)
What should the plate voltage (in V) be set to so the proton will travel straight through the plates?
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