A particle with charge q1 C is moving in the positive z-direction at 5 m/s. The magnetic field at its position is B-3 4j1T What is the magnetic force on the particle? A. (20i+15j) N B. (207-15j) N C. (-20i+15j) N D. (-20/-15) N E. none of these

D.

Explanation:

The statement is not correctly written, the correct form is now described:

A particle with charge is moving in the positive z-direction at 5 meters per second. The magnetic field at its position is . What is the magnetic force on the particle?

From classic theory on Magnetism, we remember that the magnetic force  exerted on a particle (), measured in newtons, is determined by the following vectorial formula:

(1)

Where:

- Electric charge, measured in coulombs.

- Velocity of the particle, measured in meters per second.

- Magnetic field, measured in teslas.

If we know that , and , then the magnetic force on the particle is:

Which corresponds to option D.

v 154.9= 0.9 length length s little over 154.9cm

iron would move it is magnetic there is a mag field around the current in the wire