A grain of dust carrying a charge of 0.1 C flies into a uniform magnetic field with an induction of 7 T
| December 25, 2020 | education
A grain of dust carrying a charge of 0.1 C flies into a uniform magnetic field with an induction of 7 T in a vacuum at a speed of 800 m / s at an angle of 30 degrees to the direction of the lines of magnetic induction. Determine the force acting on a speck of dust from the side of the magnetic field.
The Lorentz force acting in a magnetic field on a charged speck of dust is found by the formula:
Fl = qVBsinα, (sin30 = 0.5)
Substitute values
Fl = 0.1 * 800 * 7 * 0.5 = 280 H
Answer: 280
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