Its a solar cell. Photo voltaic Cell is also known as a solar cell.
Question four bulbs A,B,C and D are connected in a circuit shown in the figure below, the letters X, Y and Z represent three switches. Which switch is used to operate switch A separately?
Answer: x
Answer:
Explanation:
From the question we are told that:
Frictional force
Coefficient of kinetic friction
Generally the equation for Normal for is mathematically given by
Therefore
I think it's B hope it helps
a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage. reeeeeeeeeeeeeeeeeeeeeeeeee