LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
9.3k views
in Physics by (51.5k points)
Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combinations would be –

 (a) 1:2 (b) 2:1 (c) 1:4 (d) 4:1

1 Answer

0 votes
by (261k points)
selected by
 
Best answer

Heat produced in the circuit is inversely proportional to the resistance R. Let RS and RP be the equivalent resistances of the wires if connected in series and parallel respectively. Let R be the resistance of each wire. If the resistors are connected in parallel, the net resistance is given by

Therefore, the ratio of heat produced in series and parallel combinations is 1:4. Hence, the option (c) is correct.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...