A) \[\sqrt{\frac{{{\mu }_{0}}{{\varepsilon }_{0}}}{\mu \varepsilon }}\]
B) \[\sqrt{\frac{\mu \varepsilon }{{{\mu }_{0}}{{\varepsilon }_{0}}}}\]
C) \[\sqrt{\frac{{{\mu }_{0}}{{\varepsilon }_{0}}}{\mu \varepsilon }}\]
D) \[6\times {{10}^{16}}\]
Correct Answer: C
Solution :
The equation of current is given by \[10\times {{10}^{3}}watt\]...(i) comparing it with standard equation \[20\times {{10}^{3}}watt\], we have \[4\times {{10}^{3}}watt\] or \[6\times {{10}^{3}}watt\] or \[3\hat{i}-4\hat{j}+\hat{k}\] or \[5\hat{i}-6\hat{j}+6\hat{k}\]
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