Answer to Question #324060 in Electricity and Magnetism for Hana

Question

1.) A proton moves through a uniform magnetic field of magnitude 2.0 µT=2.0 x 10^6 T at a speed of 5.00 x 10^6 m/s. (a) What is the magnitude of maximum magnetic force it can experience?

(b) If the proton is replaced by an electron, will it experience the same maximum force?

2.) A 55.0 m wire carries a current of 2.25 A in a location where Earth's magnetic field is 4.5 x 10^3 T. The wire experiences a force of 0.15 N. Find the angle between the wire and the magnetic field.

3.) A long straight wire carries a current of 1.0 A.

(a) At what distance from the wire is the magnitude of the magnetic field equal to 2.5 x 10^-5 T?

(b) What is the magnitude of the magnetic force that this wire will exert on a 3.0 nC particle moving at 4.2 x 10^4 m/s perpendicular to the field at that distance?

Answer 1

B=250 mT

a=56°

l=72 mm