Question

1. A dust particle has 2 extra electrons, each with a charge of 1.6022 X 10-19 C. It drifts at a speed of 1 m/s through a 5.1500 X 10-5 T magnetic field, with its velocity perpendicular to the magnetic field. What is the MAGNITUDE (always a positive number!) of the magnetic force (in newtons) on the dust particle?

2. What is the modulus of the impedance (in Ω) of an RLC circuit with a resistance of 9.69 Ω, an inductive reactance of 3.1 Ω, and a capacitative reactance of 64.4 Ω?

3.What is the magnitude of the magnetic force (in newtons) between two parallel wires separated by a distance of 0.02 m, each carrying a current of 5.2 A, and each 64 m long??

4. How many turns of wire are necessary for a hoop carrying a current of 9.83 A and of radius 0.02 m to have a magnetic field of 0.35 T at its center?

Answer 1