What color does a red lady bug appear in a white light

A red ladybug appears red in white light,When a ladybug is red it means that its shell reflects the red light, or the radiation between 650-700 nm, from the visible spectrum

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.