why is it more dangerous to touch an electric appliance with wet hands than with dry hands?....

Water is a good conductor of electricity.Thus it is dangerous to touch electrical appliance with wet hands

See, water is a very good conductor of electricity i.e. it allows the electric current to flow through it. So, if you touch an electrical appliance, you might stand a chance of receiving an electric shock. So it is better to touch an electrical appliance with dry hands.

as water is a very gud conductor of electricity, we will easily get an electric shock