Question

Why is it difficult to charge an conductor and to discharge an insulator? Is human body originally a good conductor or insulator?

Answer 1

calculate the field at the centre of issoceless triangle when two sides is 120 cm and the other side is 180cm?

Answer 2

human body is actually an insulator.

Answer 3

the human body is good conducting matrial

Answer 4

It can be understood by a material's electron drift velocity. Conductors have a large electron drift velocity (i.e. electrons move quickly in conductors) while dielectrics have a relatively slow electron drift velocity.

Consider this experiment. If you connect a power source to a dielectric using a conductor on either side of the dielectric, then the electrons move quickly until they reach the dielectric material, where they then move slowly through the dielectric. Simply put, the dielectric receives electrons faster than it can get rid of them, and hence the dielectric is "charged". If you replaced, the dielectric with a conductor, then it would be difficult to charge the conductor since the rate that it receives electrons is approximately the same as the rate that it can get rid of them.

The human body can be considered an insulator or a conductor, depending on the situation. Dry skin can have a resistance up to 100 kOhms, but your internal tissues have a resistance < 1 kOhm. If you cut your skin, then the body loses that large resistance.

Answer 5

El cuerpo humano y todo lo que te rodea tiene un potencial dielectrico hasta que se eleve la tension de modo tal que ese dielectrico que seria la piel sea vulnerado y entonces los fluidos crporales Agua y sales conducen la corriente De ahi La electrocucion ( Silla electrica)