Question

Four charges A=2×10^6 ; B=-5×10^6;C=2×10^6;D=-5×10^6 are located at the corners of a square ABCD if side 10 cm what is the force on a charge of 1×10^6 are placed at the centre of the square

Answer 1

These properties also offer clues as to the structure of metals. ... Such bonds could be formed between metal atoms that have low electronegativities and do not attract their valence electrons strongly. ... to many atoms, they have considerable mobility that allows for the good heat andelectrical conductivity seen in metals