If square root of 5=2.236 and square root of 10=3.162 then what is the value of square root of 10 minus square root of 5 diveded by square root of 2.
A square of side √2 has charges of +2×10−9C,1×10−9C,−2×10−9Cand−3×10−9C respectively at its corners. The potential at the center of the square is
If the edge length of a square is 10 units, the area of the square is ___ square units.