Lizard able to run in ceilings and walls. why?

Reptiles have an enormous number of extremely minuscule hairs on the stack of their feet called setae. These little cushions subsequently radically increment the surface zone and come in close contact with the surface on which the reptile is creeping, so the Van der Waals forces kick in.

Explanation:

Hope this helped!

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6