ICSE Class 10 Physics 2016 Solved Paper

A battery of emf $12 {\V}$ and internal resistance $2 Ω$ is connected with two resistors $A$ and $B$ of resistance $4 Ω$ and $6 Ω$ respectively joined in series.

Find:

Question : 64 of 73

Marks: +1, -0

Electrical energy spent per minute in

4 Ω

Resistor.

Solution:

\;\text " Energy spent "\;\;= {\I}^2 {\R} t

\;=(1)^2 × 4 × 60

\;=240 {\J}

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