Very Confusing!!

Asked by  | 18th Mar, 2010, 03:54: PM

Expert Answer:

A = πR2, Hence if R becomes 2R area becomes 4A.

RA = ρL/A; RB = ρ(2L)/(4A) = ρL/2A

Hence RB = 2RA

Req = RARB/(RA+RB) = 2RA2/3RA = 2RA/3

Therefore, Req/RA = 2/3

Regards,

Team,

TopperLearning.

 

 

Answered by  | 18th Mar, 2010, 04:19: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.