Question

Single solar cell on illumination by insolation of about 800 wm2 produces a voltage of 0.5 v and a current upto 2.0

a. The efficiency of the solar cell is 12.5%. The area of the cell is

Answer 1

Explanation:

Calculate the number of neutrons. Now you know that atomic number = number of protons, and mass number = number of protons + number of neutrons. To find the number of neutrons in an element, subtract the atomic number from the mass number.