A) \[0.42\,J/s\]
B) \[0.84\,J/s\]
C) \[5\,J/s\]
D) \[1\,J/s\]
Correct Answer: D
Solution :
\[\frac{H}{t}={{i}^{2}}R\]. Here total \[R=(21+4)=25\,\,\Omega \] Þ Rate of energy consumed \[=0.2\times 0.2\times 25\]\[=\,1\,\,J/s\]
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