Intext questions XIX — task. Science CBSE, Class 10.

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An electric iron of resistance \(20\ Ω\) takes a current of \(5\ A\). Calculate the heat developed in \(30\ s\).

[Note: Enter the final answer up to one decimal place.]

According to Ohm's law,

V = i \times i

the voltage is given as

The formula for the amount of heat produced is given as

\begin{array}{l} H = i \times i \times i \\ = i \times i \times i \\ = i \times 10^{i} J \end{array}

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51. Intext questions XIX