An electron moves in circular motion in a uniform magnetic field.P velocityThe velocity of the electron at point P is 6.8 × 105 m s-1 in the direction shown.The magnitude of the magnetic field is 8.5 T.(a) State the direction of the magnetic field.
Question
An electron moves in circular motion in a uniform magnetic field.P velocityThe velocity of the electron at point P is 6.8 × 105 m s-1 in the direction shown.The magnitude of the magnetic field is 8.5 T.(a) State the direction of the magnetic field.
Solution 1
The direction of the magnetic field can be determined using the right-hand rule. If you point your right thumb in the direction of the electron's velocity, and curl your fingers, the direction your fingers are pointing is the direction of the magnetic field. In this case, without a specific diagram, it's hard to give a precise direction. However, if we assume the electron is moving in a plane (like a flat circle), and it's moving counter-clockwise, then the magnetic field would be pointing downwards.
Solution 2
The direction of the magnetic field can be determined using the right-hand rule. If you point your right thumb in the direction of the electron's velocity, and curl your fingers, the direction your fingers are pointing is the direction of the magnetic field. In this case, without a specific diagram, it's hard to give a precise direction. However, if we assume the electron is moving in a plane (like a flat circle), and it's moving counter-clockwise, then the magnetic field would be pointing downwards.
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