A Hall-effect probe operates with a 120-mA current. When the probe is placed in a uniform magnetic
Question:
A Hall-effect probe operates with a 120-mA current. When the probe is placed in a uniform magnetic field of magnitude 0.080 0 T, it produces a Hall voltage of 0.700 +V. (a) When it is measuring an unknown magnetic field, the Hall voltage is 0.330 +V. What is the magnitude of the unknown field?
(b) The thickness of the probe in the direction of B is 2.00 mm. Find the density of the charge carriers, each of which has charge of magnitude e.
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A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. The video shows the practical implications of magnetic force around different objects.
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