Show that intensity is given by i =im (cosb)^2 ((sinx)/x)^2 where b=((pie*d*sino)/labda) and x=((pie*a*sino)/labda)

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.

a.   mass number from atomic number