The study of the brain and nervous system is called

Neuropsychology is the study of the brain's structure and function. Neurobiology or Neuroscience is the study of the nervous system, which includes the brain.

Explanation:

Neurobiology or Neuroscience is the study of the nervous system, which includes the brain.

Explanation:

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.