any body can explain me ohms law and joules law
Answers
Joule's laws are two: first about heat produced by an electric current, and second about how the energy of a gas relates to pressure, volume and temperature.
Joule's first law shows the relation between heat generated by an electric current flowing through a conductor. It is named after James Prescott Joule and shown as:
{\displaystyle Q=I^{2}\cdot R\cdot t} {\displaystyle Q=I^{2}\cdot R\cdot t}
Where Q is the amount of heat, I is the electric current flowing through a conductor, R is the amount of electric resistance present in the conductor, and t is the amount of time that this happens for.
Joule's second law says that the internal energy of an ideal gas does not change if volume and pressure change, but does change if temperature changes.
two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance,[1] one arrives at the usual mathematical equation that describes this relationship:[2]
{\displaystyle I={\frac {V}{R}},} I={\frac {V}{R}},
where I is the current through the conductor in units of amperes, V is the voltage measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.[3] Ohm's law is an empirical relation which accurately describes the conductivity of the vast majority of electrically conductive materials over many orders of magnitude of current. However some materials do not obey Ohm's law, these are called non-ohmic.
at constant temperature the current flowing through conductor is directly proportional to its potential diff