a solar cell of area 2m^2 has maximum a power output per unit area of 20W/m^2 . if four solar cells are used together at once, how much energy is release in 2 mins at max power output?
max output of 1 cell = 20x2= 40w , so four cells gives 4x40 = 160w so if it gives 160 joules a second then in 2 mins it will put out 160 x (2x60) = 19200 joules
MB
Related Physics A Level answers
All answers ▸How do I derive Kepler's 3rd law using Newton's Law of gravitation, in the case of a circular orbit?
A car travelling at 28 m/s brakes until it stops completely after travelling a distance of 15 m. Calculate the deceleration of the car.
An electron moving at 1000 m/s annihilates with a stationary positron. What is the frequency of the single photon produced?
A 12V lamp, 36W is switched on for 1 hour. Find the energy supplied by the battery.