One long wire carries current 24.0 a to the left along the x axis. a second long wire carries current 70.0 a to the right along the line (y-0.280 m, z 0) (a) where in the plane of the two wires is the total magnetic field equal to zero? (b) a particle with a charge of-2.00 ? ? is moving with a velocity of 150? mm/s along the line (y = 0.100 m, z = 0). calculate the vector magnetic force acting on the particle. (ignore relativistic effects.) (c) a uniform electric field is applied to allow this particle to pass through this region undeflected. calculate the required vector electric field n/c

they should be similar or the same

yup its correct its: c) b b

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia