A current of 0.8 A flows in a conductor of 40 Ω for 1 ...

CBSE Class 12 Physics 2023 Outside Delhi Set 1 Paper

© examsnet.com

Question : 3 of 35

Marks: +1, -0

A current of 0.8 A flows in a conductor of

40 Ω

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

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

Solution: 👈: Video Solution

Given,

R=40 Ω

and

I=0.8 {\A}

t=1

minute

=60 {\ s}

Heat produced

=H=I^2 R t

\;\text " Or, "\;\;H=(0.8)^2 × 40 × 60

∴ \;H=1536 \;\text " Joule "\;

© examsnet.com

Go to Question:

Prev Question

Next Question