Question

At a given spot, the earth’s magnetic field is 5.0 × 10−5 ? and is pointed directly north. A particle with a net charge of 2.0 ?? is fired directly east at a velocity of 20,000 m/s. The particle has a mass of 2.0 × 10−12 ??.
a) With what force and in what direction (if any) will the particle be deflected in by the magnetic field?


b) If it were allowed to travel freely, and the orientation of the magnetic field stayed the same, what would the radius of the circle it travelled in?


5) A capacitor is constructed of plates with an area of 1.50 ?2, and the plates are separated by 0.0300 mm of rubber, which has a dielectric constant of 6.7. The permittivity of free space is ?0 = 8.9 × 10−12 ?/?.

a) If this capacitor is attached to a circuit with 12 V off power, how much charge can it hold?

Answer 1

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