a surface current forms
wedginald
i dont now
Hydrogen bonds
Hydrogen bonds with wather molecues.
Ice
hot filtered water
Electric field is produced
water freezes in a crack in a rock
ac
The two energy bands in which current is produced in Silicon (type of intrinsic semiconductor) are VALENCE BAND & CONDUCTION BAND
When water freezes it expands by around 10 percent. When water that is trapped in cracks or porous layers in rock freezes and expands, it exerts pressure on the rock and splits it into smaller pieces. This leads to erosion.
It is a form of weathering known as frost wedging.