Math, asked by anushaacharya900, 11 months ago

The+length+of+the+conductor+A+is+3cm+and+its+resistance+is+3ohm+and+length+of+the+conductor+is+4ohm+what+is+tge+ratio+of+an+area+of+cross+section+

Answers

Answered by maniraj7382
0

Answer:

length of the conducet in ohms...what is the exact questions

Answered by narissa050707
1

Answer:

Original resistance = Ro = rho *l/A

The resistance of the conductor is directly proportional to its length and inversely proportional to its cross sectional area.

The wire is tripled of its previous length so the resistance will be 3l

and the new cross sectional area will be A/3

Rn = 3 * rho * l/ A/3

    

     = 9R  ( R = rho*l/A)

    

     = 9*3 =27 Ohm

Plz mark brainliest ❤️❤️❤️

Similar questions