A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor carries a charge Q. If the separation between the plates is doubled, the electrical energy stored in the capacitor will be...a) unchangedb) quarteredc) halvedd) doublede) quadrupled

C) Half  

Explanation:

Given that

Area of plates =A

Distance between plates = d

The charge on the capacitor = C

We know that capacitance C is given as

The stored energy U is given as

When distance gets double ,d ' = 2 d

The value of new capacitance

New stored energy U'

Therefore the stored energy get half .

C) Half

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.