(v) Which of the following is incorrect statement? (a) A concave mirror can form a magnified virtual image.
(b) A convex mirror can form a magnified real image.
(c) A concave mirror can form a diminished real image.
(d) A convex mirror can form a diminished virtual image.

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.

friction

explanation:

they us to move forward and backwards