What is a solar-cell, how much electricity it producess?

What is Solar Cell?

How solar energy is produced?

What is solar heating device?

1dm^(3) is equal to how much lit?

What is a solar cell? How does a solar diode behave as a battery?

What is the source of solar energy?

An electric bulb is marked 100 w - 230 V . How much energy is produced in 20 miutes when operted at 230 V ?

1 Amu =how much gm?

The capacity of a secondary cell is 30 A.h what is the meaning of this statement? How much electric charge would be available without damaging the cell?