Questions
You are given resistance wire of length 50cms and a battery of negligible resistance. In which of the. following cases is largest amount of heat generated
detailed solution
Correct option is C
let .R be the resistance of the wire.(a) H1=V2tR(b) Resistance of each part will be R/2. When they are connected in parallel, the resistance will be R/4. Hence H2=4V2tR(c) In case of four wires connected in parallel, the resistance will be .R/16 ∴ H3=16V2tR(d) H4=V2t(R/2)=2V2⋅tRHence largest amount of heat will be generated in' case of four parts connected in parallelTalk to our academic expert!
Similar Questions
Permissible current through a fuse wire of diameter 1 mm is 1A. What should be the radius of a fuse wire, made of same material, whose permissible current is 8A ?
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
