Question

We repeat the experiment from the video, but this time we connect the wires in parallel rather than in series. Which wire will now dissipate the most heat?

Answer 1

answer : wire which connected in series combination will dissipate the most heat.

explanation : if voltage across the circuit remains constant. then, we have to use formula, P = V²/R

where , P denotes heat dissipation , V denotes voltage across circuit and R is resistance.

here, it is clear that Power dissipate is inversely proportional to resistance.

if R is resistance in series combination and r is resistance in parallel combination.

then, R > r

or, V²/R < V²/r

or, $P_{series}< P_{parallel}$

hence, Power dissipated in parallel combination will be greater than power dissipated in series combination.