Which of the following are characteristics of series circuits? Select all that apply.

What are the options?

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.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers