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Power Delivered and Heat Dissipated in a Circuit

Find total he...

Question

Find total heat developed per second in the circuit.

32 J

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44 J

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36 J

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48 J

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Solution

The correct option is B $44 J$
$i = \frac{Δ V}{R}, H_{p e r s e c o n d} = P o w e r = i^{2} R P o w e r t o t a l = i^{2} R_{1} + i^{2} R_{2} + i^{2} R_{3} = 16 + 8 + 20 = 44 \frac{J}{s}$

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