Copper has an atomic number of 29, so it contains 29 protons and 29 electrons.

Copper has an atomic number of 29, so it contains 29 protons and 29 electrons.

One joule per second is equivalent to one watt.

Power=work done/ time.

1 watt = 1 joule / 1 second.

W = Joule / second.

The SI units for work and time are Joules and seconds, respectively.

Therefore, One Watt was defined as a power of 1 Joule per second.

As a form of energy, heat has the unit joule (J) in the International System of Units (SI).

The SI unit of power is Watt (W) which is joules per second (J/s). Sometimes the power of motor vehicles and other machines is given in terms of Horsepower (hp), which is approximately equal to 745.7 watts.

Specific Resistance (”ρ”) is a property of any conductive material, a figure used to determine the end-to-end resistance of a conductor given length and area in this formula: R = ρl/A. Specific resistance for materials are given in units of Ω-cmil/ft or Ω-meters (metric).