What is the magnitude of the electric field produced by a charge of magnitude 4.50 mC at a distance of (a) 1.00 m and (b) 3.00 m

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

this would be about 43%