\tplz someone explain all about solenoid in jee point of view with necessary formulae.\tis the formula for B isNu0ni / (1 + (2r/L)2)with different conditions for ideal and real. or just u0N2i/L(N is no. of turnsn is no. of turns per unitlength )In hcv 57th Q. Ch 35 we derived the 1st formula but answers ofCh 38e.g.Q no.68 or 97 are matched when we apply the 2nd one plz explain...\talso tell about B at end which is half of 2nd formula......

sameer gupta , 10 Years ago

Grade 12