Important Derivations for Class 12 Physics Chapter 3 Current Electricity
Important Derivations for Class 12 Physics Chapter 3 Current Electricity Deduction of Ohm’s law. When a potential difference ‘V’ is applied across a conductor of length ‘l’, the drift velocity in terms of ‘V’ is given by $$ v_d=\frac{e E \tau}{m}=\frac{e V \tau}{m l} $$ If the area of cross-section of the conductor is ‘A’ … Read more
