If the length of a wire is increased by 20% keeping its volume constant. what will be the % change in heat produced when connected across same potential difference. explain

decreases by 30.55%

Explanation:

Given

length of wire is increased by 20 % keeping volume constant

Let the length of wire be L and its area of cross section be A

Thus new length=1.2 L

Volume is constant

A'=0.833 A

and resistance is given by

where =resistivity

New resistance

R'=1.44 R

heat produced for same potential

% change in heat

=30.55 decreases

no simpler subs form complex ones. synthesise = make

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation