Question

inter relation between P,v,i and r

Answer 1

Inter relation between P,v,i and r:

Explanation:

• According to Ohm's law, the potential difference across a resistor (or, other Ohm's device) is proportional to the current flowing through it, if the physical conditions like temperature are kept constant.
• ie
• I V
• or V=I/R or,
• {\displaystyle R={\frac {V}{I}}=\mathrm {const.} }{\displaystyle R={\frac {V}{I}}=\mathrm {const.} }
• I=V/R
• R, is called the resistance of the device. Its unit is ohm (o It defines the 'resistance' of such objects which are now called 'ohm resistance'. In other words it denotes the property of those objects whose VI characteristic is a straight line. Known That many devices used in electrical engineering and electronics do not obey Ohm's law. Such devices are called anomalous devices. For example, a diode is an anomalous device.