A) \[5{}^\circ C\]
B) \[10{}^\circ C\]
C) \[20{}^\circ C\]
D) \[40{}^\circ C\]
Correct Answer: C
Solution :
Key Idea: Electrical energy is converted into heat energy. From Joules law, for a current carrying conductor at definite temperature the rate of production of heat is directly proportional to the square of current (i2) between, then. \[A(x=0)\] where R is resistance and t is time. Also heat required to raise the temperature is \[C(x=5),\] We have \[\therefore \] \[y=a\cos (\omega t-kx)\] \[(\omega t-kx)\] \[[k]=\frac{1}{[x]}=\frac{1}{[L]}\] \[k=[{{M}^{0}}{{L}^{-1}}{{T}^{0}}]\] \[\Delta \,{{D}_{1}}=1.006-mean\] \[=1.006-1.004\]
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