Questions
Two uniform wires A and B are of the same metal and have equal masses. The radius of wire A is thrice that of wire B . The total resistance of A and B when connected in parallel is
detailed solution
Correct option is A
RARB=rBrA4⇒RARB=134=181⇒RB=81RAWhen RA and RB are connected in parallel then equivalent resistance Req=RARB(RA+RB)=8182RAIf RA=4.25Ω then Req=4.20Ω i.e. option (a) is correct.Talk to our academic expert!
Similar Questions
According to Bernoulli's theorem, The dimensional formula of the constant is :
(p-pressure, d-density, v-velocity, h-height, g- acceleration due to gravity)
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
