A current of 0.8 A flows in a conductor of ... - CBSE Class 12 ...

CBSE Class 12 Physics 2023 Outside Delhi Set 1 Paper

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Question : 3 of 35

Marks: +1, -0

A current of 0.8 A flows in a conductor of

40 \Omega

for 1 minute. The heat produced in the conductor will be

$1445\,\text{J}$
$1536\,\text{J}$
$1569\,\text{J}$
$1640\,\text{J}$

Solution: 👈: Video Solution

Given,

R=40 \Omega

and

I=0.8\,\text{A}

t=1

minute

=60\,\text{s}

Heat produced

=H=I^2 R t

\;\text{Or,}\;\;H=(0.8)^2 \times 40 \times 60

\therefore \;H=1536 \;\text{Joule}\;

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