A straight conductor of uniform cross section carries a time varying current, which varies at the rate `di//dt = I`. If `s` is the specific charge that is carried by each charge carrier of the conductor and l is the length of the conductor, then the total force experienced by all the charge carrier per unit length of the conductor due to their drift velocities only isA. I sB. `(I)/(s)`C. `sqrt((I)/(s))`D. `((I)/(s))^2`

A straight conductor of uniform cross section carries a time varying c

1.	A straight conductor of uniform cross section carries a time varying current, which varies at the rate `di//dt = I`. If `s` is the specific charge that is carried by each charge carrier of the conductor and l is the length of the conductor, then the total force experienced by all the charge carrier per unit length of the conductor due to their drift velocities only isA. I sB. `(I)/(s)`C. `sqrt((I)/(s))`D. `((I)/(s))^2`
Answer» Correct Answer - B `I = n e A v_d, s = ( e)/(m)` Momentum of all free electrons//length `p = ((nAl)mv_d)/(l) = (n A ev_d m)/(e)` =`(n e Av_d)/(e//m) = (I)/(s)`.

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