A person notices a mild shock if the current along a path through the thumb and index finger exceeds 77 μA. Compare the maximum possible voltage without shock across the thumb and index finger with a dry-skin resistance of 4.4 ✕ 105 Ω and a wet-skin resistance of 1,750 Ω.

What is special about a dc circuit ?

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.

Which system of units is used by only a small number of countries in the world, including the u.s.