Atypical wavelength of infrared radiation emitted by your body is 29 mm (2.9×10−2 m ). find the energy per photon of such radiation.

= 6.848 × 10^-24 J

Explanation:

Energy of a photon may be given by the Formula;

E = hf or E = hc/λ where E  is the c is the speed of light, h is the planks constant and λ is the wavelength.

The speed of light is 3 × 10^8 m/s, h is 6.626 × 10^-34 Js

Hence;

E = (6.62 × 10^-34 Js × 3× 10^8 m/s)/ 2.9 × 10^-2 m

   =6.848 × 10^-24 Joules

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.