On the image at right, the two magnets are the same. Which paper clip would be harder to remove?

B

Explanation: The book is thinner making magnets attraction stronger, making the paper clip harder to move

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.