Draw neat and labelled diagram.
One solar panel produces a potential difference of 18 V and current of 3 A. Discribe how you can obtain a potential difference of 72 Volts and current of 9 A with a solar array using solar panels. You can use sign of a battery for a solar panel.
We can obtain a potential difference of 72 V by forming a string of 5 solar panels in series. Now, to obtain current of 9 A, connect 3 such identical strings in parallel. The same has been shown below.