Pages

Friday, 3 October 2014

What is Electrical Resistance

Electrical Resistance is Denoted by 'R' and is the amount of opposition caused by a circuit in the flow of current.
Under normal/standard conditions The potential difference across the ends of a electrical circuit is directly proportional to the current flowing through it ,

Potential Difference is denoted by V and Current is denoted by I

when we remove the proportionality sign then a the equation becomes

V = IR
or I = V / R , Here R is the resistance offered by the circuit.

hence current is inversely proportional to the Resistance. It opposes the flow of current.

If we will plot a graph between V and I it will we a linear graph , as R is constant in this case.


No comments:

Post a Comment