Why is a scientific theory the most powerful explanation scientists have to offer? a)many different scientists have added data from their own experiments to build the theory. b)a theory is the same things as a hypothesis. c)scientific theories are usually the work of a single scientist. d)technology is used to provide the experimental data for a scientific theory.

I believe the answer is A

The answer is A

Hope that helps

-May

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.